code: def isrot(m, ntol, dtol):
      
      m = stypes.toDoubleMatrix(m)
      ntol = ctypes.c_double(ntol)
      dtol = ctypes.c_double(dtol)
      return bool(libspice.isrot_c(m, ntol, dtol))
docs: Indicate whether a 3x3 matrix is a rotation matrix.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/isrot_c.html
  
      :param m: A matrix to be tested.
      :type m: 3x3-Element Array of floats
      :param ntol: Tolerance for the norms of the columns of m.
      :type ntol: float
      :param dtol:
                  Tolerance for the determinant of a matrix whose columns
                  are the unitized columns of m.
      :type dtol: float
      :return: True if and only if m is a rotation matrix.
      :rtype: bool