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# pandas.Index.dot

`Index.``dot`(b, out=None)

  Dot product of two arrays.

  Refer to numpy.dot for full documentation.

  See also

  `numpy.dot`
    equivalent function

  Examples

      >>> a = np.eye(2)
      >>> b = np.ones((2, 2)) * 2
      >>> a.dot(b)
      array([[ 2.,  2.],
             [ 2.,  2.]])

  This array method can be conveniently chained:

      >>> a.dot(b).dot(b)
      array([[ 8.,  8.],
             [ 8.,  8.]])

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