/* nag_matop_complex_gen_matrix_frcht_pow (f01kfc) Example Program. * * Copyright 2013 Numerical Algorithms Group. * * Mark 24, 2013. */ #include #include #include #include #define A(I,J) a[J*pda + I] #define E(I,J) e[J*pde + I] int main(void) { /* Scalars */ Integer exit_status = 0; Integer pda, pde; Integer i, j, n; double p; /* Arrays */ Complex *a = 0; Complex *e = 0; /* Nag Types */ Nag_OrderType order = Nag_ColMajor; NagError fail; INIT_FAIL(fail); printf("nag_matop_complex_gen_matrix_frcht_pow (f01kfc) "); printf("Example Program Results\n\n"); fflush(stdout); /* Skip heading in data file */ scanf("%*[^\n] "); /* Read in the problem size and the required power */ scanf("%ld", &n); scanf("%lf", &p); scanf("%*[^\n]"); pda = n; if (!(a = NAG_ALLOC(pda*n, Complex))) { printf("Allocation failure\n"); exit_status = -1; goto END; } pde = n; if (!(e = NAG_ALLOC(pde*n, Complex))) { printf("Allocation failure\n"); exit_status = -2; goto END; } /* Read in the matrix A from data file */ for (i = 0; i < n; i++) for (j = 0; j < n; j++) scanf(" ( %lf , %lf ) ", &A(i, j).re, &A(i, j).im); scanf("%*[^\n]"); /* Read in the matrix E from data file */ for (i = 0; i < n; i++) for (j = 0; j < n; j++) scanf(" ( %lf , %lf ) ", &E(i, j).re, &E(i, j).im); scanf("%*[^\n]"); /* Find A^p and L(A,E) using * nag_matop_complex_gen_matrix_frcht_pow (f01kfc) * Frechet derivative of complex matrix power */ nag_matop_complex_gen_matrix_frcht_pow(n, a, pda, e, pde, p, &fail); if (fail.code != NE_NOERROR) { printf("Error from nag_matop_complex_gen_matrix_frcht_pow (f01kfc)\n%s\n", fail.message); exit_status = 1; goto END; } /* Print matrix A^p using nag_gen_cmplx_mat_print (x04dac) * Print complex general matrix (easy-to-use) */ nag_gen_complx_mat_print(order, Nag_GeneralMatrix, Nag_NonUnitDiag, n, n, a, pda, "A^p", NULL, &fail); if (fail.code != NE_NOERROR) { printf("Error from nag_gen_cmplx_mat_print (x04dac)\n%s\n", fail.message); exit_status = 2; goto END; } /* Print matrix L(A,E) using nag_gen_cmplx_mat_print (x04dac) * Print complex general matrix (easy-to-use) */ nag_gen_complx_mat_print(order, Nag_GeneralMatrix, Nag_NonUnitDiag, n, n, e, pde, "L(A,E)", NULL, &fail); if (fail.code != NE_NOERROR) { printf("Error from nag_gen_cmplx_mat_print (x04dac)\n%s\n", fail.message); exit_status = 3; goto END; } END: NAG_FREE(a); NAG_FREE(e); return exit_status; }