Difference between revisions of "IsDefined Command"

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<noinclude>{{Manual Page|version=4.2}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|logical}}
{{command|logical}}
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; IsDefined( <Object> ): Returns ''true'' or ''false'' depending on whether the object is defined or not.
; IsDefined[Object]: Returns ''true'' or ''false'' depending on whether the object is defined or not.
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:{{Example|1=<code>IsDefined(Circle((1,1), -2))</code> returns ''false''.}}

Latest revision as of 18:41, 30 September 2017

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