original_docstring:  Rotation about the z-axis. 
docstring: Rotation about the z-axis.
docstring_tokens: Rotation about the z - axis .
code: def rotz(t):
      ''' Rotation about the z-axis. '''
      c = np.cos(t)
      s = np.sin(t)
      return np.array([[c, -s, 0],
                       [s, c, 0],
                       [0, 0, 1]])
code_tokens: def rotz ( t ) : c = np . cos ( t ) s = np . sin ( t ) return np . array ( [ [ c , - s , 0 ] , [ s , c , 0 ] , [ 0 , 0 , 1 ] ] )
short_docstring: Rotation about the z-axis.
short_docstring_tokens: Rotation about the z - axis .
comment: ''' Rotation about the z-axis. '''