SUM FROM ... TO: Difference between revisions

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{{Keyword
{{Keyword
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<code>SUM FROM [[variable]] = [[expression]] TO [[expression]] { [[expression]] }</code>
<code>SUM FROM [[symbol]] = [[expression]] TO [[expression]] { [[expression]] }</code>
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2=
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Latest revision as of 15:32, 2 July 2017

Syntax

SUM FROM symbol = expression TO expression { expression }

Implemented in iMath since version 2.2.0 or earlier.

Explanation

Create a sum function summing up the expression in curly brackets from the lower bound to the upper bound. The function can then be symbolically evaluated with SIMPLIFY.

Example

EQDEF S = SUM FROM x = 1 to 100 {x}

EQDEF SIMPLIFY(@prev@ , "sum")

This will calculate the value of S as 5050.

See also