4>KSP (Krylov Subspace Methods):</h4>
      <h4>PC (Preconditioners):</h4>
      <h4>MAT (Matrices):</h4>

      <ul>
        <li>
          When using MatCreate(), you must follow with a MatSetType() or
          MatSetFromOptions() before using the matrix.
        </li>

        <li>
          Changed <code>int
            MatShellSetOperation(Mat,MatOperation,void*);</code> to <code>int
            MatShellSetOperation(Mat,MatOperation,void(*)());</code>
        </li>

        <li>
          Changed <cod