Difference between revisions of "IsDefined Command"
From GeoGebra Manual
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− | {{command|logical}} | + | ; IsDefined( <Object> ): Returns ''true'' or ''false'' depending on whether the object is defined or not. |
− | ; IsDefined | + | :{{Example|1=<code>IsDefined(Circle((1,1), -2))</code> returns ''false''.}} |
Latest revision as of 18:41, 30 September 2017
- IsDefined( <Object> )
- Returns true or false depending on whether the object is defined or not.
- Example:
IsDefined(Circle((1,1), -2))
returns false.