示例#1
0
        public void Standard()
        {
            double[] A =
            {
                8.79,  6.11, -9.15, 9.57, -3.49,  9.84,
                9.93,  6.91, -7.93, 1.64,  4.02,  0.15,
                9.83,  5.04,  4.86, 8.83,  9.80, -8.99,
                5.45, -0.27,  4.85, 0.74, 10.00, -6.02,
                3.16,  7.98,  3.01, 5.80,  4.27, -5.31
            };

            int m = 6, n = 5, lda = 6, ldu = 6, ldvt = 5, info = 0, lwork = -1;

            double[] work = new double[5];

            /* Local arrays */
            double[] s = new double[5], u = new double[6 * 6], vt = new double[5 * 5];

            LAPACK.dgesvd_("ALL".ToCharArray(), "All".ToCharArray(), ref m, ref n, A, ref lda, s, u, ref ldu, vt, ref ldvt, work, ref lwork, ref info);

            lwork = (int)work[0];

            work = new double[lwork];

            LAPACK.dgesvd_("ALL".ToCharArray(), "All".ToCharArray(), ref m, ref n, A, ref lda, s, u, ref ldu, vt, ref ldvt, work, ref lwork, ref info);
        }