Difference between revisions of "NIntegral Command"

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<noinclude>{{Manual Page|version=4.2}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|geogebra}}
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;NIntegral( <Function>, <Start x-Value>, <End x-Value> )
==CAS Syntax==
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:Computes (numerically) the definite integral <math>\int_a^bf(x)\mathrm{d}x</math> of the given function ''f'', from ''a'' (''Start x-Value'') to ''b'' (''End x-Value'').
;NIntegral[ <Function f>, <Start x-Value a>, <End x-Value b> ]
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:{{example| 1=<code><nowiki>NIntegral(ℯ^(-x^2), 0, 1)</nowiki></code> yields ''0.75''.}}
:Computes the definite integral <math>\int_a^bf(x)\mathrm{d}x</math> numerically.
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:{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-x^2), 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}}
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{{hint|1=In the [[File:Menu view cas.svg|link=|16px]] [[CAS View]] the following syntax can also be used:
;NIntegral[ <Function f>, <Variable t>, <Start variable-Value a>, <End variable-Value b> ]
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<br>
:Computes the definite integral <math>\int_a^bf(t)\mathrm{d}t</math> numerically.
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;NIntegral( <Function>, <Variable>, <Start Value>, <End Value> )
:{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-a^2), a, 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}}
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:Computes (numerically) the definite integral <math>\int_a^bf(t)\mathrm{d}x</math> of the given function ''f'', from ''a'' (''Start value'') to ''b'' (''End value''), with respect to the given variable.
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:{{example| 1=<code><nowiki>NIntegral(ℯ^(-a^2), a, 0, 1)</nowiki></code> yields ''0.75''.}}
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}}

Revision as of 09:56, 12 October 2017


NIntegral( <Function>, <Start x-Value>, <End x-Value> )
Computes (numerically) the definite integral \int_a^bf(x)\mathrm{d}x of the given function f, from a (Start x-Value) to b (End x-Value).
Example: NIntegral(ℯ^(-x^2), 0, 1) yields 0.75.


Note Hint: In the Menu view cas.svg CAS View the following syntax can also be used:


NIntegral( <Function>, <Variable>, <Start Value>, <End Value> )
Computes (numerically) the definite integral \int_a^bf(t)\mathrm{d}x of the given function f, from a (Start value) to b (End value), with respect to the given variable.
Example: NIntegral(ℯ^(-a^2), a, 0, 1) yields 0.75.
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