code: def mxmtg(m1, m2, nrow1, nc1c2, nrow2):
      
      m1 = stypes.toDoubleMatrix(m1)
      m2 = stypes.toDoubleMatrix(m2)
      mout = stypes.emptyDoubleMatrix(x=nrow2, y=nrow1)
      nrow1 = ctypes.c_int(nrow1)
      nc1c2 = ctypes.c_int(nc1c2)
      nrow2 = ctypes.c_int(nrow2)
      libspice.mxmtg_c(m1, m2, nrow1, nc1c2, nrow2, mout)
      return stypes.cMatrixToNumpy(mout)
docs: Multiply a matrix and the transpose of a matrix, both of arbitrary size.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/mxmtg_c.html
  
      :param m1: Left-hand matrix to be multiplied.
      :type m1: NxM-Element Array of floats
      :param m2: Right-hand matrix whose transpose is to be multiplied
      :type m2: NxM-Element Array of floats
      :param nrow1: Row dimension of m1 and row dimension of mout.
      :type nrow1: int
      :param nc1c2: Column dimension of m1 and column dimension of m2.
      :type nc1c2: int
      :param nrow2: Row dimension of m2 and column dimension of mout.
      :type nrow2: int
      :return: Product matrix.
      :rtype: NxM-Element Array of floats