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Please note that the recommended version of Scilab is 6.0.1. This page might be outdated.
See the recommended documentation of this function

Aide Scilab >> Chaînes de caractères > isnum

isnum

tests if a string represents a number

Calling Sequence

res = isnum(str)

Arguments

str

a character string or a matrix of character strings.

res

a boolean matrix.

Description

res = isnum(str) returns %t if str represents a number.

Examples

isnum(['1'     , ..
    '-1.23' , ..
    '+1e+23', ..
    '1d+23' , ..
    'A'     , ..
    '%pi'])

See Also

  • isletter — check that characters of a string are alphabetic letters
  • isdigit — check that characters of a string are digits between 0 and 9
  • isalphanum — check that characters of a string are alphanumerics
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Last updated:
Tue Apr 02 17:36:47 CEST 2013