isnum
From DavinciWiki
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Latest revision as of 09:24, 24 June 2008
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Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: >1.00
Description Test for numeric input.
Arguments and Return Values Arguments: Single input (any format) Return Value: 1 if input is numeric (byte, short, int, float, or double); 0 otherwise If no arguments are input, isnum() prints its description, as shown below.
Usage Syntax: isnum(x) 'x' - anything
Examples dv> isnum()
Returns 1 if input is numeric (any format), 0 if not
S.Marshall 12-06-2007
0
dv> isnum(1//2//3)
1
dv> isnum(pi)
1
dv> isnum("Hello world!")
0
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