Difference between revisions of "NIntegral Command"
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;NIntegral[ <Function>, <Start x-Value>, <End x-Value> ] | ;NIntegral[ <Function>, <Start x-Value>, <End x-Value> ] | ||
:Let ''a'' be the ''Start x-Value'', ''b'' be the ''End x-Value'' and ''f'' the ''Function''. NIntegral-command computes the definite integral <math>\int_a^bf(x)\mathrm{d}x</math> numerically. | :Let ''a'' be the ''Start x-Value'', ''b'' be the ''End x-Value'' and ''f'' the ''Function''. NIntegral-command computes the definite integral <math>\int_a^bf(x)\mathrm{d}x</math> numerically. | ||
:{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-x^2), 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}} | :{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-x^2), 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}} | ||
+ | {{hint|1=In the [[File:Menu view cas.svg|link=|16px]] [[CAS View]] the following syntax can also be used: | ||
+ | <br> | ||
;NIntegral[ <Function>, <Variable>, <Start Value>, <End Value> ] | ;NIntegral[ <Function>, <Variable>, <Start Value>, <End Value> ] | ||
:Let ''a'' be the ''Start x-Value'', ''b'' be the ''End x-Value'', ''f'' the ''Function'' and ''t'' the ''Variable'' to integrate. NIntegral-command computes the definite integral <math>\int_a^bf(t)\mathrm{d}t</math> numerically. | :Let ''a'' be the ''Start x-Value'', ''b'' be the ''End x-Value'', ''f'' the ''Function'' and ''t'' the ''Variable'' to integrate. NIntegral-command computes the definite integral <math>\int_a^bf(t)\mathrm{d}t</math> numerically. | ||
:{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-a^2), a, 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}} | :{{example| 1=<div><code><nowiki>NIntegral[ℯ^(-a^2), a, 0, 1]</nowiki></code> yields ''0.746824132812427''.</div>}} | ||
+ | }} |
Revision as of 14:59, 2 September 2015
- NIntegral[ <Function>, <Start x-Value>, <End x-Value> ]
- Let a be the Start x-Value, b be the End x-Value and f the Function. NIntegral-command computes the definite integral \int_a^bf(x)\mathrm{d}x numerically.
- Example:
NIntegral[ℯ^(-x^2), 0, 1]
yields 0.746824132812427.
Hint: In the CAS View the following syntax can also be used:
- NIntegral[ <Function>, <Variable>, <Start Value>, <End Value> ]
- Let a be the Start x-Value, b be the End x-Value, f the Function and t the Variable to integrate. NIntegral-command computes the definite integral \int_a^bf(t)\mathrm{d}t numerically.
- Example:
NIntegral[ℯ^(-a^2), a, 0, 1]
yields 0.746824132812427.