Difference between revisions of "Numeric Command"
From GeoGebra Manual
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<noinclude>{{Manual Page|version=5.0}}</noinclude> {{command|geogebra}} | <noinclude>{{Manual Page|version=5.0}}</noinclude> {{command|geogebra}} | ||
==CAS Syntax== | ==CAS Syntax== | ||
− | ;Numeric | + | ;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]]. | :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=<div><code><nowiki>Numeric[3 / 2]</nowiki></code> yields ''1.5''.</div>}} | :{{example|1=<div><code><nowiki>Numeric[3 / 2]</nowiki></code> yields ''1.5''.</div>}} | ||
− | ;Numeric | + | ;Numeric( <Expression>, <Significant Figures> ) |
:Tries to determine a numerical approximation of the given expression, using the entered number of significant figures. | :Tries to determine a numerical approximation of the given expression, using the entered number of significant figures. | ||
:{{example|1=<div><code><nowiki>Numeric[sin(1), 20]</nowiki></code> yields ''0.84147098480789650665''.</div>}} | :{{example|1=<div><code><nowiki>Numeric[sin(1), 20]</nowiki></code> yields ''0.84147098480789650665''.</div>}} |
Revision as of 16:15, 7 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.