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# numpy.core.defchararray.isdecimal

`numpy.core.defchararray.``isdecimal`(a)

  For each element, return True if there are only decimal characters in the element.

  Calls unicode.isdecimal element-wise.

  Decimal characters include digit characters, and all characters that that can be used to form decimal-radix numbers, e.g. `U+0660, ARABIC-INDIC DIGIT ZERO`.

  Parameters : | a : array_like, unicode Input array.
  Returns : | out : ndarray, bool Array of booleans identical in shape to a.

  See also

  `unicode.isdecimal`