Difference between revisions of "Numeric Command"

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<noinclude>{{Manual Page|version=5.0}}</noinclude> {{command|geogebra}}
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==CAS Syntax==
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;Numeric( <Expression> )
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:Tries to determine a numerical approximation of the given expression. The number of decimals depends on the global rounding you choose in the [[Options Menu]].
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:{{example|1=<code><nowiki>Numeric(3 / 2)</nowiki></code> yields ''1.5''.}}
  
test
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uu<noinclude>{{Manual Page|version=4.0}}<noinclude/>
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;Numeric( <Expression>, <Significant Figures> )
{{command|CAS}}
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:Tries to determine a numerical approximation of the given expression, using the entered number of significant figures.
;Numeric[ <Expression> ]
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:{{example|1=<code><nowiki>Numeric(sin(1), 20)</nowiki></code> yields ''0.84147098480789650665''.}}
:{{description}}
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;Numeric[ <Expression>, <significant figures> ]
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{{note|1=If you don't specify enough digits then you can get an apparently wrong answer due to [http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html floating point cancelation].
:{{description}}
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:{{example|1=
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<code>Numeric(-500000000/785398163*sin(785398163/500000000)*1258025227.19^2+500000000/785398163*1258025227.19^2,10)</code> will give ''4096'' but <code>Numeric(-500000000/785398163*sin(785398163/500000000)*1258025227.19^2+500000000/785398163*1258025227.19^2,30)</code> will give ''0.318309886345536696694580314215''.}}
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}}
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{{Note| See also [[File:Mode nsolve.svg|link=|24px]] [[Numeric Tool|Numeric]] tool. }}

Latest revision as of 09:59, 12 October 2017


CAS Syntax

Numeric( <Expression> )
Tries to determine a numerical approximation of the given expression. The number of decimals depends on the global rounding you choose in the Options Menu.
Example: Numeric(3 / 2) yields 1.5.


Numeric( <Expression>, <Significant Figures> )
Tries to determine a numerical approximation of the given expression, using the entered number of significant figures.
Example: Numeric(sin(1), 20) yields 0.84147098480789650665.


Note: If you don't specify enough digits then you can get an apparently wrong answer due to floating point cancelation.
Example: Numeric(-500000000/785398163*sin(785398163/500000000)*1258025227.19^2+500000000/785398163*1258025227.19^2,10) will give 4096 but Numeric(-500000000/785398163*sin(785398163/500000000)*1258025227.19^2+500000000/785398163*1258025227.19^2,30) will give 0.318309886345536696694580314215.
Note: See also Mode nsolve.svg Numeric tool.
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