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# numpy.core.defchararray.isdecimal

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

  For each element in a, 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 of unicode
  Returns : | out : ndarray Array of booleans

  See also

  `unicode.isdecimal`

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