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calc/help/isnum
2017-05-21 15:38:25 -07:00

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NAME
isnum - whether a value is a numeric value
SYNOPSIS
isnum(x)
TYPES
x any, &any
return int
DESCRIPTION
Determine if x is a numeric value. This function will return 1 if x
is a a numeric value, 0 otherwise.
EXAMPLE
> print isnum(2.0), isnum(1), isnum("0")
1 1 0
> print isnum(2i), isnum(1e20), isnum(1/3)
1 1 1
LIMITS
none
LIBRARY
none
SEE ALSO
isassoc, isfile, isident, isint, islist, ismat, isnull, isobj,
isreal, isstr, issimple, istype