Difference between revisions of "Sums"
From mispar
(→even number of terms = last term is even) |
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: 5-10]] | [[comment: 5-10]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=6}^{11} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 6-11]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: 1-12]] | [[comment: 1-12]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{14} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 1-14]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{16} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 1-16]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: 1-11]] | [[comment: 1-11]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{13} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 1-13]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: 1-19]] | [[comment: 1-19]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{25} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 1-25]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: aₙ, 1, 55]] | [[comment: aₙ, 1, 55]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=5}^{n} i=45</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: aₙ, 5, 45]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} i=120</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: aₙ, 1, 120]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: aₙ, 1, 465]] | [[comment: aₙ, 1, 465]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | === Find the first term === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=m}^{10} i=45</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: a₁, 10, 45]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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=== Find the last term === | === Find the last term === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} 2i=42</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of evens]] | ||
+ | [[comment: aₙ, 2, 42]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} 2i=30</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} 2i=30</math><div class="mw-collapsible-content"> | ||
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[[category: #sum of odds]] | [[category: #sum of odds]] | ||
[[comment: 7-13]] | [[comment: 7-13]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{15} \left(2i-1\right)</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of odds]] | ||
+ | [[comment: 1-15]] | ||
}}</div></div><br> | }}</div></div><br> | ||
Line 184: | Line 246: | ||
=== Find the last term === | === Find the last term === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)=25</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of odds]] | ||
+ | [[comment: aₙ, 1, 25]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)=36</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)=36</math><div class="mw-collapsible-content"> | ||
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[[category: #sum of odds]] | [[category: #sum of odds]] | ||
[[comment: aₙ, 1, 36]] | [[comment: aₙ, 1, 36]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | == Sum of Sevens == | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^9 7i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum]] | ||
+ | [[comment: 7i,1-9]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | == Sum of Triples== | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{7} 3i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum[0] ]] | ||
+ | [[comment: 3i, 1-7]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of powers of two]] | [[category: #sum of powers of two]] | ||
[[comment: 1-128]] | [[comment: 1-128]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{12} 2^{i-1}</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of powers of two]] | ||
+ | [[comment: 1-4095]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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== Sum of Squares == | == Sum of Squares == | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{4} i^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of squares]] | ||
+ | [[comment: 1-4]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} i^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of squares]] | ||
+ | [[comment: 1-5]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{7} i^2</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{7} i^2</math><div class="mw-collapsible-content"> | ||
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[[category: #sum of squares]] | [[category: #sum of squares]] | ||
[[comment: 1-7]] | [[comment: 1-7]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=4}^{8} i^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of squares]] | ||
+ | [[comment: 4-8]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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=== Squares of Evens === | === Squares of Evens === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{4} \left(2i\right)^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #squares of evens]] | ||
+ | [[comment: 2-8]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^2</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^2</math><div class="mw-collapsible-content"> | ||
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=== Squares of Odds === | === Squares of Odds === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{4} \left(2i-1\right)^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #squares of odds]] | ||
+ | [[comment: 1-7]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i-1\right)^2</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i-1\right)^2</math><div class="mw-collapsible-content"> | ||
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[[category: #squares of odds]] | [[category: #squares of odds]] | ||
[[comment: 1-9]] | [[comment: 1-9]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{4} \left(4i\right)^2</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of squares]] | ||
+ | [[comment: 4i,1-7]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of cubes]] | [[category: #sum of cubes]] | ||
[[comment: 1-5]] | [[comment: 1-5]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{6} i^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 1-6]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{7} i^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 1-7]] | ||
}}</div></div><br> | }}</div></div><br> | ||
Line 299: | Line 438: | ||
[[category: #sum of cubes]] | [[category: #sum of cubes]] | ||
[[comment: 4-10]] | [[comment: 4-10]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=5}^{10} i^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 5-10]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=5}^{12} i^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 5-12]] | ||
}}</div></div><br> | }}</div></div><br> | ||
=== Find the last term === | === Find the last term === | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} i^3=225</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: aₙ, 1, 225]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} i^3=3025</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} i^3=3025</math><div class="mw-collapsible-content"> | ||
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[[category: #cubes of odds]] | [[category: #cubes of odds]] | ||
[[comment: 1-9]] | [[comment: 1-9]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{7} \left(2i-1\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of odds]] | ||
+ | [[comment: 1-13]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=3}^{5} \left(2i-1\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of odds]] | ||
+ | [[comment: 5-9]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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==== Find the last term ==== | ==== Find the last term ==== | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)^3=256</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of odds]] | ||
+ | [[comment: aₙ, 1, 256]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)^3=1225</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)^3=1225</math><div class="mw-collapsible-content"> | ||
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=== Cubes of Evens === | === Cubes of Evens === | ||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{3} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of evens]] | ||
+ | [[comment: 2-6]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^3</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
[[category: #cubes of evens]] | [[category: #cubes of evens]] | ||
[[comment: 2-10]] | [[comment: 2-10]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{6} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of evens]] | ||
+ | [[comment: 2-12]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=2}^{6} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of evens]] | ||
+ | [[comment: 4-12]] | ||
}}</div></div><br> | }}</div></div><br> | ||
Line 346: | Line 538: | ||
==== Find the last term ==== | ==== Find the last term ==== | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i\right)^3=400</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of evens]] | ||
+ | [[comment: aₙ, 2, 400]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i\right)^3=1800</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{n} \left(2i\right)^3=1800</math><div class="mw-collapsible-content"> | ||
Line 351: | Line 549: | ||
[[category: #cubes of evens]] | [[category: #cubes of evens]] | ||
[[comment: aₙ, 2, 1800]] | [[comment: aₙ, 2, 1800]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(4i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 4i,1-5]] | ||
}}</div></div><br> | }}</div></div><br> |
Latest revision as of 16:24, 1 July 2023
Contents
Sum of Natural Numbers
even number of terms = last term is even
![\scriptstyle\sum_{i=1}^6 i](/mediawiki/images/math/b/6/4/b64b9d9c070524d360b6393530710fd9.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-6 | לקוטים_מספר_פראלוקא#hPlC | Example: we wish to sum from 1 to 6.
::![]() |
![\scriptstyle\sum_{i=1}^8 i](/mediawiki/images/math/1/b/6/1b69f8aaa7d6b3aeda2972da6646ba87.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-8 | ספר_הכללים_במספר#zy8k | 77) 1, 2, 3, 4, 5, 6, 7, 8.
:![]() |
![\scriptstyle\sum_{i=1}^{10} i](/mediawiki/images/math/4/7/3/4735da8c981b092086e14e8dda1d40dc.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-10 | קצת_מענייני_חכמת_המספר#mfsN | To know the numbers that are set in succession.
:![]() ![]() |
sum/sum of natural numbers | 1-10 | ספר_מעשה_חושב#oa4i | Example: if you want to sum one, two, three, four, and so on up to ten, including ten.
::![]() |
sum/sum of natural numbers | 1-10 | ספר_חשבון#QIjG | If a person says: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 - how much is the total?
:![]() |
sum/sum of natural numbers | 1-10 | ספר_החשבון_והמדות#4op2 | Example: we wish to add the numbers that are from 1 up to 10 one by the one.
:![]() |
sum/sum of natural numbers | 1-10 | ספר_החשבון_לאל_חצאר#4THN | When you are told: sum from one to ten in arithmetic succession.
:![]() |
sum/sum of natural numbers | 1-10 | ספר_החשבון_והמדות#QkuV | Example: we wish to know how much is the sum of the numbers that are from 1 up to 10.
:![]() |
![\scriptstyle\sum_{i=4}^{10} i](/mediawiki/images/math/0/b/b/0bbd32a8531f8fbb56a9e3db6a08fac8.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 4-10 | ספר_דיני_ממונות#mA7A | 20) Question: sum from 1 to 10 without the [first] three.
:![]() |
sum/sum of natural numbers | 4-10 | ספר_החשבון_והמדות#A9Sh | Question: I summed from 4 up to 10. How much are they?
:![]() |
![\scriptstyle\sum_{i=5}^{10} i](/mediawiki/images/math/2/c/6/2c602ade99ebe170fd0e3a35c93b03f5.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 5-10 | ספר_החשבון_לאל_חצאר#hJtL | If you are told: sum from five to ten.
:![]() |
sum/sum of natural numbers | 5-10 | קצת_מענייני_חכמת_המספר#6eLr | If the numbers that are given in succession do not start from 1.
ואם המספרים המונחים על סדר המספר לא יתחילו מהא'
|-
|
:![]() ![]() |
![\scriptstyle\sum_{i=6}^{11} i](/mediawiki/images/math/2/1/4/214d50376534dc62bbaf8cb45e800a08.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 6-11 | ספר_מעשה_חושב#uFgw | Example: The first number is six, and we want to sum the successive numbers that follow it up to eleven.
::![]() |
![\scriptstyle\sum_{i=1}^{12} i](/mediawiki/images/math/5/2/6/526ea5fde5b6fe882188c59654803789.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-12 | ספר_חשבון#kTQb | If he continues his question until 12.
:![]() |
sum/sum of natural numbers | 1-12 | ספר_המספר_/_אברהם_אבן_עזרא#xE2F | Example: we wish to know how much is the sum up to 12?
:![]() |
sum/sum of natural numbers | 1-12 | מלאכת_המספר#V836 | Example: we wish to know the sum from one to 12.
::![]() |
sum/sum of natural numbers | 1-12 | לקוטים_מספר_פראלוקא#GKFV | Example: we wish to know the sum of all the numbers from 1 to 12.
::![]() |
![\scriptstyle\sum_{i=1}^{14} i](/mediawiki/images/math/5/8/7/58790af76dde3209eca50b243f69b279.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-14 | ספר_דיני_ממונות#EW6C | 17) Question: if you want to sum from 1 to 14, i.e. 1 with 2, with 3, and so on until 14.
:![]() |
![\scriptstyle\sum_{i=1}^{16} i](/mediawiki/images/math/7/4/c/74c463771b3df2fe08b1ceef13317b3f.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-16 | ספר_דיני_ממונות#afC8 | Example: we want to know [the sum] from 1 to 16.
:![]() |
![\scriptstyle\sum_{i=1}^{18} i](/mediawiki/images/math/e/5/9/e59dc84340e009671369c83fbbd527b8.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-18 | ספר_המספר_/_אברהם_אבן_עזרא#IeC7 | Another example for an even number [of terms]: how much is the sum up to 18?
:![]() |
![\scriptstyle\sum_{i=1}^{20} i](/mediawiki/images/math/6/2/1/62192566b2e26e1419ace1f8f199d705.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-20 | ספר_חשבון#u3dY | If he continues his question until 20.
:![]() |
sum/sum of natural numbers | 1-20 | עיר_סיחון#2heg | Question: we summed all the successive numbers from one to twenty and it is the sum. How much is the sum?
:![]() |
![\scriptstyle\sum_{i=1}^{100} i](/mediawiki/images/math/a/4/a/a4abb16256d14a0ab9112528b7902823.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-100 | ספר_חשבון#YfUq | If he continues his question until one hundred.
:![]() |
odd number of terms = last term is odd
![\scriptstyle\sum_{i=1}^{7} i](/mediawiki/images/math/3/f/6/3f68c07e0c3f430cb7a5a461eede835c.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-7 | לקוטים_מספר_פראלוקא#xJHj | If you want to sum from 1 to 7.
::![]() |
sum/sum of natural numbers | 1-7 | ספר_הכללים_במספר#bsMG | 78) 1, 2, 3, 4, 5, 6, 7.
:![]() |
sum/sum of natural numbers | 1-7 | ספר_חשבון#Hvdz | As the one who says: I continue my calculation until 7. How much is the total?
:![]() |
![\scriptstyle\sum_{i=1}^{9} i](/mediawiki/images/math/6/3/7/637b8949a98584f90be64c3defb7d487.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-9 | ספר_חשבון#2b1t | If he continues his question until 9.
:![]() |
sum/sum of natural numbers | 1-9 | ספר_החשבון_והמדות#vKJf | Another example for an odd [number of terms]: we wish to know how much is the sum of the numbers from 1 up to 9.
:![]() |
![\scriptstyle\sum_{i=1}^{11} i](/mediawiki/images/math/3/c/7/3c75ff92e48d7774f5acea0c0b570f4a.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-11 | עיר_סיחון#pHD6 | If we want to know how much are the numbers summed up up to eleven.
:![]() |
sum/sum of natural numbers | 1-11 | ספר_המספר_/_אברהם_אבן_עזרא#OprP | Example: we wish to know how much are the numbers that are summed from 1 to 11?
:![]() |
![\scriptstyle\sum_{i=1}^{13} i](/mediawiki/images/math/9/d/8/9d8d5c150262ae1c76de7e9593896e36.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-13 | מלאכת_המספר#3sxY | Example: we wish to know the sum from one to 13.
::![]() |
![\scriptstyle\sum_{i=1}^{17} i](/mediawiki/images/math/b/0/1/b01ce1e0b1c54d9c015de3c51fea15ed.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-17 | ספר_חשבון#T2rf | If he continues until 17.
:![]() |
![\scriptstyle\sum_{i=1}^{19} i](/mediawiki/images/math/0/3/3/033c26f928d4849dae96057e318bace2.png)
Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-19 | ספר_חשבון#CIoT | If he continues until 19.
:![]() |
![\scriptstyle\sum_{i=1}^{25} i](/mediawiki/images/math/a/f/d/afdc48313dbd9ae21534b78fe4583f98.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | 1-25 | ספר_דיני_ממונות#uz7F | Example: we want to know the sum from 1 to 25.
:![]() |
Find the last term
![\scriptstyle\sum_{i=1}^{n} i=55](/mediawiki/images/math/0/4/d/04d0c79e30f528f0a1700fa8335b2164.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | aₙ, 1, 55 | ספר_החשבון_לאל_חצאר#Q7I1 | Sum from one up to an unknown number by the succession of the numbers and the result is fifty five, how much is the unknown number?
:![]() |
sum/sum of natural numbers | aₙ, 1, 55 | ספר_החשבון_והמדות#GzAy | Question: if a person asks you: I summed numbers and they are 55, how much are the numbers?
:![]() |
sum/sum of natural numbers | aₙ, 1, 55 | קצת_מענייני_חכמת_המספר#2wMi | Numbers that are summed successively and the result is a known number.
:![]() ![]() |
![\scriptstyle\sum_{i=5}^{n} i=45](/mediawiki/images/math/1/6/3/1636ac8b5fd37d0163e07902841578a4.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | aₙ, 5, 45 | קצת_מענייני_חכמת_המספר#xRiD | Numbers that are summed from a known number.
:![]() ![]() |
![\scriptstyle\sum_{i=1}^{n} i=120](/mediawiki/images/math/3/8/b/38bd7a6053b06b6ebdb45e4c217c7a26.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | aₙ, 1, 120 | ספר_דיני_ממונות#ZASk | 21) Question: we sum up all the numbers until an unknown number and the sum is 120.
:![]() |
![\scriptstyle\sum_{i=1}^{n} i=210](/mediawiki/images/math/4/1/c/41c28f60a6f2fbe18d16f7ef907af960.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | aₙ, 1, 210 | עיר_סיחון#Xl23 | Reverse question: the sum of the successive numbers starting from one is 210. What is the last number of the summed [numbers]?
:![]() איזה הוא המספר האחרון מהמחוברים |
![\scriptstyle\sum_{i=1}^{n} i=465](/mediawiki/images/math/b/7/7/b77ad5ceeeb0d9305737bbfb7037e5a8.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | aₙ, 1, 465 | ספר_המספר_/_אברהם_אבן_עזרא#GXqn | Example: one asks: I sum all the numbers until they reach a known number and the sum is 465. How much is the last number?
:![]() |
Find the first term
![\scriptstyle\sum_{i=m}^{10} i=45](/mediawiki/images/math/f/6/6/f66c161ce84ea15d0bf7705a0c68ef99.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of natural numbers | a₁, 10, 45 | קצת_מענייני_חכמת_המספר#Sm0l | We know the 10, which is [the last] summed number, and that the sum is 45, but the 5 is unknown.
::![]() |
Sum of Evens
![\scriptstyle\sum_{i=1}^{4} 2i](/mediawiki/images/math/2/d/4/2d4fa18977d97c1f8cc442ac038af8c5.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | 2-8 | ספר_הכללים_במספר#zzdV | 80) 2, 4, 6, 8 - that are evens.
:![]() |
![\scriptstyle\sum_{i=1}^{5} 2i](/mediawiki/images/math/2/a/7/2a75e4414709336b6917ec4a45d00686.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | 2-10 | ספר_מעשה_חושב#Cm3W | Example: if you want to sum the evens up to ten.
::![]() |
sum/sum of even numbers | 2-10 | ספר_החשבון_לאל_חצאר#6jsl | When you are told: sum from two to ten by the sequence of the evens.
:![]() |
![\scriptstyle\sum_{i=1}^{6} 2i](/mediawiki/images/math/b/9/7/b97262dc131aad47eca046e06e0c1039.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | 2-12 | ספר_חשבון#Gsfn | As 2, 4, 6, 8, 10, 12 - how much is the total?
:![]() |
sum/sum of even numbers | 2-12 | מלאכת_המספר#voap | Example of this: if the last even number is 12.
::![]() |
sum/sum of even numbers | 2-12 | ספר_דיני_ממונות#WfgD | 23) Question: if you want to know the sum of all the evens from 2 to 12.
:![]() |
![\scriptstyle\sum_{i=3}^{6} 2i](/mediawiki/images/math/8/4/0/840e52875c9868803cd80f076e45159a.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | 6-12 | ספר_החשבון_לאל_חצאר#tzpR | If he said: sum from six to twelve by the sequence of the evens.
:![]() |
![\scriptstyle\sum_{i=1}^{10} 2i](/mediawiki/images/math/a/2/8/a285db8c662a5d03e2ce82bd74c2d287.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | 2-20 | ספר_חשבון#qYPE | If he says: I continued until twenty.
:![]() |
Find the last term
![\scriptstyle\sum_{i=1}^{n} 2i=42](/mediawiki/images/math/5/6/9/569f57a1c07681fc8644d76014b153e5.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | aₙ, 2, 42 | ספר_דיני_ממונות#U8Ey | 25) Question: we summed up all the evens from 1 to an unknown number and the sum is 42.
:![]() |
![\scriptstyle\sum_{i=1}^{n} 2i=30](/mediawiki/images/math/3/a/6/3a6bbde7237d35faf994c5bfa471ac4b.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even numbers | aₙ, 2, 30 | ספר_החשבון_לאל_חצאר#F8bu | If he said: sum from two up to an even number by the succession of the evens and the sum is thirty, how much is the unknown number up to which it is summed?
:![]() |
Sum of Odds
![\scriptstyle\sum_{i=1}^{5} \left(2i-1\right)](/mediawiki/images/math/0/b/2/0b28aa40df722b9110aae0144f830594.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 1-9 | ספר_הכללים_במספר#djRx | 79) 1, 3, 5, 7, 9 - that are odds.
:![]() |
sum/sum of odd numbers | 1-9 | ספר_חשבון#rGAn | As 1, 3, 5, 7, 9 - how much is the total?
:![]() |
sum/sum of odd numbers | 1-9 | ספר_מעשה_חושב#Mp2k | Example: If you want to sum the successive odds up to nine including one.
::![]() |
sum/sum of odd numbers | 1-9 | ספר_דיני_ממונות#2PiX | 22) Question: sum all the odds from 1 to 9.
:![]() |
![\scriptstyle\sum_{i=1}^{6} \left(2i-1\right)](/mediawiki/images/math/8/3/f/83f5036203ac6c375d6a3d827abaa5ae.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 1-11 | ספר_חשבון#NxSy | If he continues his question until 11.
:![]() |
![\scriptstyle\sum_{i=1}^{7} \left(2i-1\right)](/mediawiki/images/math/6/b/2/6b28c794afd6f97115cc8cee56e069d0.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 1-13 | ספר_חשבון#2g6v | If he continues until 13.
:![]() |
![\scriptstyle\sum_{i=4}^{7} \left(2i-1\right)](/mediawiki/images/math/e/7/c/e7cc11d587b720bba2fe041a9f265a8d.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 7-13 | ספר_החשבון_לאל_חצאר#TVil | If he said: sum from seven to thirteen by the sequence of the odds.
:![]() |
![\scriptstyle\sum_{i=1}^{15} \left(2i-1\right)](/mediawiki/images/math/6/c/3/6c312b6a217e7da3a0a12fc0ff9a0d47.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 1-15 | מלאכת_המספר#FKII | Example of this: we wish to know the sum of all the odd numbers from one to 15.
::![]() |
![\scriptstyle\sum_{i=1}^{10} \left(2i-1\right)](/mediawiki/images/math/0/1/b/01bec8a1c402c8829b20cc3a5d0e1265.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | 1-19 | ספר_החשבון_לאל_חצאר#RTIO | Sum from one to nineteen by the sequence of the odds.
:![]() |
Find the last term
![\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)=25](/mediawiki/images/math/4/2/d/42dd241d6a8130c58bd2ee6c1a2e98e7.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | aₙ, 1, 25 | ספר_דיני_ממונות#nd14 | 24) Question: we sum up all the odds until an unknown numbers and the sum is 25.
:![]() |
![\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)=36](/mediawiki/images/math/d/4/2/d421c5041047897f9a13f82ed99c2241.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd numbers | aₙ, 1, 36 | ספר_החשבון_לאל_חצאר#Yciw | If he said: sum from one up to an unknown number by the succession [of the odds] and the sum is 36, how much is the [unknown] number?
:![]() |
Sum of Sevens
![\scriptstyle\sum_{i=1}^9 7i](/mediawiki/images/math/a/4/3/a435bd36df0fb1ba8e2c658518436179.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
addition/sum | 7i,1-9 | ספר_מעשה_חושב#sEo5 | Example: the first is seven, the second fourteen, the third 21, the fourth 28, and so on in this way up to nine numbers.
::![]() |
Sum of Triples
![\scriptstyle\sum_{i=1}^{7} 3i](/mediawiki/images/math/8/1/7/817269c9eecf6b5792bafca74fae86da.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
addition/sum | 3i, 1-7 | ספר_דיני_ממונות#7Gpu | Question: sum for me seven numbers successively, such that each exceeds over the one that precedes it by 3. שאלה תחבר לי ז' מספרים על דרך ההמשך שכל אחד יוסיף על חבירו ג' |
Sum of Powers of Two = Sum of Even-Times-Even Numbers
![\scriptstyle\sum_{i=1}^{6} 2^{i-1}](/mediawiki/images/math/f/b/0/fb0cae1110546365b3b72cc65c1245d4.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of two | 1-32 | ספר_חשבון#y2at | As 1, 2, 4, 8, 16, 32.
:![]() |
sum/sum of powers of two | 1-32 | ספר_חשבון#6kg5 | Example: one says: I summed the doubles from 1 to 32. How much is their sum?
:![]() |
![\scriptstyle\sum_{i=1}^{7} 2^{i-1}](/mediawiki/images/math/5/c/e/5cea5d242ade6819a509d85d4339d342.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of two | 1-64 | ספר_חשבון#WJGn | If he says: I started from 1 and doubled until 64. How much is [their sum]?
:![]() |
![\scriptstyle\sum_{i=1}^{8} 2^{i-1}](/mediawiki/images/math/9/7/c/97caa6772ccc36f9200350d399dc2073.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of two | 1-128 | ספר_חשבון#IUR1 | If he says: I started from one and doubled until 128. How much is [their sum]?
:![]() |
sum/sum of powers of two | 1-128 | ספר_דיני_ממונות#29bw | 40) Question: if you want to know the sum of 1, 2, 4, 8, 16, and so on, each consecutive number is double the preceding number, and the last number is 128.
:![]() |
![\scriptstyle\sum_{i=1}^{12} 2^{i-1}](/mediawiki/images/math/5/7/f/57f718a8d067313540d923a31f66513a.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of two | 1-4095 | ספר_דיני_ממונות#GokE | [41)] If you want to sum 1 with 2, 4, 8, 16, and so on double 12 times.
::![]() |
![\scriptstyle\sum_{i=3}^{6} 2^{i-1}](/mediawiki/images/math/0/a/c/0ace8465479c25342429b2a96d266717.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of two | 4-32 | ספר_חשבון#ghpP | If he says: I started from 4 and doubled until 32. How much is their sum?
:![]() |
Sum of Powers of Three
![\scriptstyle\sum_{i=1}^{4} 3^{i-1}](/mediawiki/images/math/6/0/2/602027d32d642f6ce4d362cba886083c.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of three | 1-27 | ספר_חשבון#mIQm | As 1, 3, 9, 27.
:![]() |
Sum of Powers of Four
![\scriptstyle\sum_{i=1}^{3} 4^{i-1}](/mediawiki/images/math/6/d/6/6d621542e4e9fcd459373f465fce7844.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of powers of four | 1-16 | ספר_חשבון#aAn8 | As 1, 4, 16.
:![]() |
Sum of Squares
![\scriptstyle\sum_{i=1}^{4} i^2](/mediawiki/images/math/d/e/1/de1e357e23a0285062983b9ca98b245a.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 1-4 | ספר_דיני_ממונות#JRLl | 26) Question: if you want to sum up all the squares [of the numbers] from 1 to 4.
:![]() |
sum/sum of square numbers | 1-4 | ספר_החשבון_והמדות#pOla | Example: how much are the squares that are summed from 1 up to 4?
:![]() |
![\scriptstyle\sum_{i=1}^{5} i^2](/mediawiki/images/math/5/9/3/593195df991039d26debd25a6e29f1b4.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 1-5 | ספר_מעשה_חושב#Wmsv | Example: If you want to know [the sum of] the squares of the successive numbers up to five.
::![]() |
sum/sum of square numbers | 1-5 | ספר_דיני_ממונות#HKRB | 27) Question: if you want to sum up all the squares [of the numbers] from 1 to 25
:![]() |
![\scriptstyle\sum_{i=1}^{7} i^2](/mediawiki/images/math/3/8/e/38efbd5b5d4f87c2d05b641564402607.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 1-7 | ספר_המספר_/_אברהם_אבן_עזרא#ad1Q | Example: we wish to know how much are the squares up to seven?
:![]() |
![\scriptstyle\sum_{i=4}^{8} i^2](/mediawiki/images/math/b/e/2/be282ac691fa0f3c9993c7bfd3798683.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 4-8 | ספר_דיני_ממונות#VWnE | 28) Question: sum up [the squares] from the square of [4] to the square of 8.
:![]() |
![\scriptstyle\sum_{i=1}^{10} i^2](/mediawiki/images/math/5/0/1/50123fec67fa675e9ce96dee38a60f42.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 1-10 | קצת_מענייני_חכמת_המספר#EiRm | To know the squares of the natural numbers [that are set] in succession until whichever number you wish.
:![]() ![]() |
sum/sum of square numbers | 1-10 | ספר_החשבון_לאל_חצאר#6e94 | Sum from the square of one to the square of ten by the succession of the numbers.![]() |
![\scriptstyle\sum_{i=1}^{12} i^2](/mediawiki/images/math/f/c/d/fcdef0efbde9c6765c5fb2b2512dba52.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 1-12 | ספר_המספר_/_אברהם_אבן_עזרא#nrny | Another example: how much is the sum of the squares up to 12?
:![]() |
![\scriptstyle\sum_{i=5}^{12} i^2](/mediawiki/images/math/6/f/c/6fc30623b8577b3168afad54b8ee7125.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of square numbers | 5-12 | ספר_החשבון_לאל_חצאר#YeOS | If he said: sum from the square of five to the square of twelve.
:![]() |
Squares of Evens
![\scriptstyle\sum_{i=1}^{4} \left(2i\right)^2](/mediawiki/images/math/f/5/a/f5a25bcdc323b3abd5969a57d4ceab99.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even squares | 2-8 | ספר_דיני_ממונות#FdKc | 29) Question: if you want to sum up all the squares of the even numbers from 2 to 8.
:![]() |
![\scriptstyle\sum_{i=1}^{5} \left(2i\right)^2](/mediawiki/images/math/6/0/b/60ba8cd239448aec8fa97f5f26f2e0cf.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even squares | 2-10 | ספר_החשבון_לאל_חצאר#2Xeo | Sum from the square of two to the square of ten by the sequence of the evens.
:![]() |
![\scriptstyle\sum_{i=3}^{8} \left(2i\right)^2](/mediawiki/images/math/1/b/2/1b2d0d05501743e64e2752ee64e752fb.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of even squares | 6-16 | ספר_החשבון_לאל_חצאר#UbTz | If he said: sum from the square of six to the square of sixteen.
:![]() |
Squares of Odds
![\scriptstyle\sum_{i=1}^{4} \left(2i-1\right)^2](/mediawiki/images/math/b/2/6/b2663c3ebbcd47182dd2d199caabfbdc.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd squares | 1-7 | ספר_דיני_ממונות#sUpB | 30) Question: sum up the squares of the odd numbers from 1 to 7
:![]() |
![\scriptstyle\sum_{i=1}^{5} \left(2i-1\right)^2](/mediawiki/images/math/3/2/5/3256b0686d29fc1582bfbf24717e2094.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
sum/sum of odd squares | 1-9 | ספר_החשבון_לאל_חצאר#gBq8 | If he said: sum from the square of one to the square of nine by the sequence of the odds.
:![]() |
sum/sum of odd squares | 1-9 | קצת_מענייני_חכמת_המספר#l12R | To know [the sum of] the squares of the odd numbers [that are set] in succession.
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sum/sum of odd squares | 1-9 | ספר_מעשה_חושב#24Cc | Example: We want to know [the sum of] the squares of the successive odd numbers up to nine.
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![\scriptstyle\sum_{i=1}^{4} \left(4i\right)^2](/mediawiki/images/math/0/f/9/0f9f58a23c7cad281f8216887ce9e59a.png)
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sum/sum of square numbers | 4i,1-7 | ספר_מעשה_חושב#Ujwo | Example: If you want to sum the squares of the successive numbers, the first number of which is four, the second is eight, the third is twelve, and so on they follow each other this way up to seven numbers.
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Sum of Cubes
![\scriptstyle\sum_{i=1}^{5} i^3](/mediawiki/images/math/7/8/e/78e0d035cb68a26beafea8535dd62375.png)
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sum/sum of cubic numbers | 1-5 | ספר_המספר_/_אברהם_אבן_עזרא#mhj4 | Example: we wish to know how much is the sum of the cubes up to 5?
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![\scriptstyle\sum_{i=1}^{6} i^3](/mediawiki/images/math/7/b/f/7bf79a145b705ade3709edb6cf497dcd.png)
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sum/sum of cubic numbers | 1-6 | ספר_מעשה_חושב#T9BI | Example: We want to know [the sum of] the cubes of the successive numbers from one up to six.
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![\scriptstyle\sum_{i=1}^{7} i^3](/mediawiki/images/math/b/9/9/b99eeb745a46786098c309dff6129854.png)
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sum/sum of cubic numbers | 1-7 | ספר_דיני_ממונות#nV2h | 31) Question: sum up from the cube of 1 to the cube of 7
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![\scriptstyle\sum_{i=1}^{10} i^3](/mediawiki/images/math/a/7/a/a7a624a8b57c53d9fb6837036a2381a5.png)
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sum/sum of cubic numbers | 1-10 | ספר_החשבון_לאל_חצאר#Nfkl | Sum from the cube of one to the cube of ten by the succession of the numbers.
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![\scriptstyle\sum_{i=4}^{10} i^3](/mediawiki/images/math/9/4/3/94341ca131d18a9dd4d9fdb1c441388a.png)
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sum/sum of cubic numbers | 4-10 | ספר_החשבון_לאל_חצאר#KOJ6 | If he said: sum from the cube of four to the cube of ten.
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![\scriptstyle\sum_{i=5}^{10} i^3](/mediawiki/images/math/2/7/6/276072305fcae1f6e3e6a50ef908b214.png)
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sum/sum of cubic numbers | 5-10 | קצת_מענייני_חכמת_המספר#JGRe | As if you wish to know [the sum of] the cube numbers from 5 to 10. כגון שרצית לידע מעוקבי מספרים מה' עד הי' |
![\scriptstyle\sum_{i=5}^{12} i^3](/mediawiki/images/math/7/0/4/704ec6d1f1d833b98bdec8bc52f18d5d.png)
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sum/sum of cubic numbers | 5-12 | ספר_דיני_ממונות#SUpM | 32) Question: sum up from the cube of 5 to the cube of 12.
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Find the last term
![\scriptstyle\sum_{i=1}^{n} i^3=225](/mediawiki/images/math/4/3/4/434997ef190ea558f8699df369544948.png)
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sum/sum of cubic numbers | aₙ, 1, 225 | ספר_דיני_ממונות#mrIH | 33) Question: we summed up all the cubes from 1 to an unknown number and the sum is 225.
:How much is the unknown number?
:![]() כמה הוא המספר הנעלם |
![\scriptstyle\sum_{i=1}^{n} i^3=3025](/mediawiki/images/math/e/e/2/ee2be6f3026228c118637a16f3a42db4.png)
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sum/sum of cubic numbers | aₙ, 1, 3025 | ספר_החשבון_לאל_חצאר#Sivd | If he said: sum from the cube of one to the cube of an unknown number and the result is 3025, how much is the unknown number?
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Cubes of Odds
![\scriptstyle\sum_{i=1}^{5} \left(2i-1\right)^3](/mediawiki/images/math/c/6/7/c67f8bea165d34852b6d2b5267fdd331.png)
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sum/sum of odd cubes | 1-9 | ספר_החשבון_לאל_חצאר#ZShx | Sum from the cube of one to the cube of nine by the succession of the odds.
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![\scriptstyle\sum_{i=1}^{7} \left(2i-1\right)^3](/mediawiki/images/math/c/2/f/c2fb6b08e8984b25a306571d731542d5.png)
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sum/sum of odd cubes | 1-13 | ספר_דיני_ממונות#kjWM | 34) Question: sum up the cubes of the odd numbers from 1 to 13.
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![\scriptstyle\sum_{i=3}^{5} \left(2i-1\right)^3](/mediawiki/images/math/d/f/d/dfd608ca33452d7f5d67383a8aa4c677.png)
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sum/sum of odd cubes | 5-9 | ספר_דיני_ממונות#79pn | 35) Question: sum up the cubes of the odd numbers from 5 to 9.
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![\scriptstyle\sum_{i=4}^{6} \left(2i-1\right)^3](/mediawiki/images/math/3/0/0/30039972e6cd5d9bab1bf9c5eeddfefb.png)
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sum/sum of odd cubes | 7-11 | ספר_החשבון_לאל_חצאר#OrOM | If he said: sum from the cube of seven to the cube of eleven.
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Find the last term
![\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)^3=256](/mediawiki/images/math/5/8/0/5808f376cfdff7f417b96421a40dc654.png)
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sum/sum of odd cubes | aₙ, 1, 256 | ספר_דיני_ממונות#3zw4 | 36) Question: we sum up all the cubes of the odds from 1 until an unknown number and the result is 256.
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![\scriptstyle\sum_{i=1}^{n} \left(2i-1\right)^3=1225](/mediawiki/images/math/6/0/4/604739913136f87de6dfb028d00be740.png)
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sum/sum of odd cubes | aₙ, 1, 1225 | ספר_החשבון_לאל_חצאר#Hsvy | If he said: sum from the cube of one to the cube of an unknown number by the sequence of the odds and the result is 1225, how much is the unknown number?
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Cubes of Evens
![\scriptstyle\sum_{i=1}^{3} \left(2i\right)^3](/mediawiki/images/math/7/b/3/7b31977659c84af37509e5de99c5437d.png)
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sum/sum of even cubes | 2-6 | ספר_מעשה_חושב#ve6G | Example: If you want to know [the sum of] the cubes of the successive even numbers up to six.
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![\scriptstyle\sum_{i=1}^{5} \left(2i\right)^3](/mediawiki/images/math/c/a/a/caa64f730f2fc64de510cee0b80d8f20.png)
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sum/sum of even cubes | 2-10 | ספר_החשבון_לאל_חצאר#V9ri | Sum from the cube of two to the cube of ten by the sequence of the evens.
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![\scriptstyle\sum_{i=1}^{6} \left(2i\right)^3](/mediawiki/images/math/9/3/3/933ebbfdf2b32bbc102aaa91dc69770e.png)
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sum/sum of even cubes | 2-12 | ספר_דיני_ממונות#jOk3 | 37) Question: sum up the cubes of the even numbers from 2 to 12.
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![\scriptstyle\sum_{i=2}^{6} \left(2i\right)^3](/mediawiki/images/math/d/6/1/d615deefc0a0e60e2c9b7d7e954a8c4f.png)
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sum/sum of even cubes | 4-12 | ספר_דיני_ממונות#mv1u | 38) Question: sum up the cubes of the even numbers from 4 to 12.
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![\scriptstyle\sum_{i=4}^{8} \left(2i\right)^3](/mediawiki/images/math/2/b/a/2ba9f846c14da532b81ec4bff253897c.png)
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sum/sum of even cubes | 8-16 | ספר_החשבון_לאל_חצאר#cBXr | If he said: sum from the cube of eight to the cube of sixteen.
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Find the last term
![\scriptstyle\sum_{i=1}^{n} \left(2i\right)^3=400](/mediawiki/images/math/0/9/e/09ee15dffe25309fd5106a5861c9cab7.png)
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sum/sum of even cubes | aₙ, 2, 400 | ספר_דיני_ממונות#aCf5 | 39) Question: we sum up all the cubes of the evens from 2 until an unknown number and the sum is 400.
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![\scriptstyle\sum_{i=1}^{n} \left(2i\right)^3=1800](/mediawiki/images/math/b/a/9/ba9f9a6e946f90ebed832a8f6ed50c2e.png)
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sum/sum of even cubes | aₙ, 2, 1800 | ספר_החשבון_לאל_חצאר#6aQ3 | If he said: sum from the cube of two to the cube of an unknown number by the sequence of the evens and the result is [1]800, how much is the unknown number?
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![\scriptstyle\sum_{i=1}^{5} \left(4i\right)^3](/mediawiki/images/math/0/6/4/0647baeb727a74999ec29601e645055a.png)
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sum/sum of cubic numbers | 4i,1-5 | ספר_מעשה_חושב#P0Rk | Example: Let the first number be four, the second eight, and so on according to this way up to five numbers.
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