*************************** Matrix Polynomial Order *************************** :: Matrix polynomial order = ----------------------- Description / Usage ----------------------- This optional card allows selection of polynomial order when a polynomial preconditioning option is selected (see the *Preconditioner* card). The input parameter is defined as: Number of steps, **k** ( ≥ 0 ), to take when using matrix polynomial based preconditioners (Jacobi and symmetric Gauss-Seidel, for example). If the Matrix polynomial order card is omitted, then the default selection is **k=3.** ------------ Examples ------------ Following is a sample card: :: Matrix polynomial order = 4 ------------------------- Technical Discussion ------------------------- When used, the value of this parameter should be greater than 0, and probably no more than 10. In some, if not all, cases, a value of 0 is meaningless. This card is not used if the preconditioner does not use matrix polynomials.