Difference between revisions of "RemoveUndefined Command"

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<noinclude>{{Manual Page|version=4.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|list}}
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; RemoveUndefined( &lt;List> ):Removes undefined objects from a list.
; RemoveUndefined[List]: Removes undefined objects from a list.
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: {{Example| 1=<div><code>RemoveUndefined(Sequence((-1)^i, i, -3, -1, 0.5))</code> removes the second and fourth element of the sequence since expressions <math>(-1)^{1.5}</math> and <math>(-1)^{2.5}</math> are undefined and yields list ''{-1, 1, -1}.</div>}}
: {{Example| <code>RemoveUndefined[Sequence[(-1)^i, i, -3, -1, 0.5]]</code> removes the second and fourth elements of the sequence which have non-integer exponents and, therefore, are undefined.}}
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{{note| 1=<div>See also [[Remove Command]].</div>}}

Latest revision as of 10:27, 6 October 2017


RemoveUndefined( <List> )
Removes undefined objects from a list.
Example:
RemoveUndefined(Sequence((-1)^i, i, -3, -1, 0.5)) removes the second and fourth element of the sequence since expressions (-1)^{1.5} and (-1)^{2.5} are undefined and yields list {-1, 1, -1}.


Note:
See also Remove Command.
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