Difference between revisions of "Numeric Command"
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+ | <noinclude>{{Manual Page|version=5.0}}</noinclude> {{command|geogebra}} | ||
+ | ==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|1=<code><nowiki>Numeric(3 / 2)</nowiki></code> 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|1=<code><nowiki>Numeric(sin(1), 20)</nowiki></code> yields ''0.84147098480789650665''.}} | |
− | :{{ | + | |
− | + | {{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]. | |
− | + | :{{example|1= | |
+ | <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''.}} | ||
+ | }} | ||
+ | {{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 butNumeric(-500000000/785398163*sin(785398163/500000000)*1258025227.19^2+500000000/785398163*1258025227.19^2,30)
will give 0.318309886345536696694580314215.
Note: See also Numeric tool.