// // Arguments : const double A[476] // double U[476] // double S[17] // double V[289] // Return Type : void // static void eml_xgesvd(const double A[476], double U[476], double S[17], double V[289]) { double b_A[476]; double s[17]; double e[17]; int kase; double work[28]; int q; int iter; boolean_T apply_transform; double ztest0; int qp1jj; int qs; int m; double rt; double ztest; double snorm; int32_T exitg3; boolean_T exitg2; double f; double varargin_1[5]; double mtmp; boolean_T exitg1; double sqds; memcpy(&b_A[0], &A[0], 476U * sizeof(double)); for (kase = 0; kase < 17; kase++) { s[kase] = 0.0; e[kase] = 0.0; } memset(&work[0], 0, 28U * sizeof(double)); memset(&U[0], 0, 476U * sizeof(double)); memset(&V[0], 0, 289U * sizeof(double)); for (q = 0; q < 17; q++) { iter = q + 28 * q; apply_transform = false; ztest0 = c_eml_xnrm2(28 - q, b_A, iter + 1); if (ztest0 > 0.0) { apply_transform = true; if (b_A[iter] < 0.0) { s[q] = -ztest0; } else { s[q] = ztest0; } if (fabs(s[q]) >= 1.0020841800044864E-292) { ztest0 = 1.0 / s[q]; kase = (iter - q) + 28; for (qp1jj = iter; qp1jj + 1 <= kase; qp1jj++) { b_A[qp1jj] *= ztest0; } } else { kase = (iter - q) + 28; for (qp1jj = iter; qp1jj + 1 <= kase; qp1jj++) { b_A[qp1jj] /= s[q]; } } b_A[iter]++; s[q] = -s[q]; } else { s[q] = 0.0; } for (qs = q + 1; qs + 1 < 18; qs++) { kase = q + 28 * qs; if (apply_transform) { eml_xaxpy(28 - q, -(eml_xdotc(28 - q, b_A, iter + 1, b_A, kase + 1) / b_A[q + 28 * q]), iter + 1, b_A, kase + 1); } e[qs] = b_A[kase]; } for (qp1jj = q; qp1jj + 1 < 29; qp1jj++) { U[qp1jj + 28 * q] = b_A[qp1jj + 28 * q]; } if (q + 1 <= 15) { ztest0 = d_eml_xnrm2(16 - q, e, q + 2); if (ztest0 == 0.0) { e[q] = 0.0; } else { if (e[q + 1] < 0.0) { e[q] = -ztest0; } else { e[q] = ztest0; } ztest0 = e[q]; if (fabs(e[q]) >= 1.0020841800044864E-292) { ztest0 = 1.0 / e[q]; for (qp1jj = q + 1; qp1jj + 1 < 18; qp1jj++) { e[qp1jj] *= ztest0; } } else { for (qp1jj = q + 1; qp1jj + 1 < 18; qp1jj++) { e[qp1jj] /= ztest0; } } e[q + 1]++; e[q] = -e[q]; for (qp1jj = q + 1; qp1jj + 1 < 29; qp1jj++) { work[qp1jj] = 0.0; } for (qs = q + 1; qs + 1 < 18; qs++) { b_eml_xaxpy(27 - q, e[qs], b_A, (q + 28 * qs) + 2, work, q + 2); } for (qs = q + 1; qs + 1 < 18; qs++) { c_eml_xaxpy(27 - q, -e[qs] / e[q + 1], work, q + 2, b_A, (q + 28 * qs) + 2); } } for (qp1jj = q + 1; qp1jj + 1 < 18; qp1jj++) { V[qp1jj + 17 * q] = e[qp1jj]; } } } m = 15; e[15] = b_A[463]; e[16] = 0.0; for (q = 16; q > -1; q += -1) { iter = q + 28 * q; if (s[q] != 0.0) { for (qs = q + 1; qs + 1 < 18; qs++) { kase = (q + 28 * qs) + 1; eml_xaxpy(28 - q, -(eml_xdotc(28 - q, U, iter + 1, U, kase) / U[iter]), iter + 1, U, kase); } for (qp1jj = q; qp1jj + 1 < 29; qp1jj++) { U[qp1jj + 28 * q] = -U[qp1jj + 28 * q]; } U[iter]++; for (qp1jj = 1; qp1jj <= q; qp1jj++) { U[(qp1jj + 28 * q) - 1] = 0.0; } } else { memset(&U[28 * q], 0, 28U * sizeof(double)); U[iter] = 1.0; } } for (q = 16; q > -1; q += -1) { if ((q + 1 <= 15) && (e[q] != 0.0)) { kase = (q + 17 * q) + 2; for (qs = q + 1; qs + 1 < 18; qs++) { qp1jj = (q + 17 * qs) + 2; d_eml_xaxpy(16 - q, -(b_eml_xdotc(16 - q, V, kase, V, qp1jj) / V[kase - 1]), kase, V, qp1jj); } } memset(&V[17 * q], 0, 17U * sizeof(double)); V[q + 17 * q] = 1.0; } for (q = 0; q < 17; q++) { ztest0 = e[q]; if (s[q] != 0.0) { rt = fabs(s[q]); ztest = s[q] / rt; s[q] = rt; if (q + 1 < 17) { ztest0 = e[q] / ztest; } b_eml_xscal(ztest, U, 1 + 28 * q); } if ((q + 1 < 17) && (ztest0 != 0.0)) { rt = fabs(ztest0); ztest = rt / ztest0; ztest0 = rt; s[q + 1] *= ztest; c_eml_xscal(ztest, V, 1 + 17 * (q + 1)); } e[q] = ztest0; } iter = 0; snorm = 0.0; for (qp1jj = 0; qp1jj < 17; qp1jj++) { ztest0 = fabs(s[qp1jj]); ztest = fabs(e[qp1jj]); if ((ztest0 >= ztest) || rtIsNaN(ztest)) { } else { ztest0 = ztest; } if ((snorm >= ztest0) || rtIsNaN(ztest0)) { } else { snorm = ztest0; } } while ((m + 2 > 0) && (!(iter >= 75))) { qp1jj = m; do { exitg3 = 0; q = qp1jj + 1; if (qp1jj + 1 == 0) { exitg3 = 1; } else { ztest0 = fabs(e[qp1jj]); if ((ztest0 <= 2.2204460492503131E-16 * (fabs(s[qp1jj]) + fabs(s[qp1jj + 1]))) || (ztest0 <= 1.0020841800044864E-292) || ((iter > 20) && (ztest0 <= 2.2204460492503131E-16 * snorm))) { e[qp1jj] = 0.0; exitg3 = 1; } else { qp1jj--; } } } while (exitg3 == 0); if (qp1jj + 1 == m + 1) { kase = 4; } else { qs = m + 2; kase = m + 2; exitg2 = false; while ((!exitg2) && (kase >= qp1jj + 1)) { qs = kase; if (kase == qp1jj + 1) { exitg2 = true; } else { ztest0 = 0.0; if (kase < m + 2) { ztest0 = fabs(e[kase - 1]); } if (kase > qp1jj + 2) { ztest0 += fabs(e[kase - 2]); } ztest = fabs(s[kase - 1]); if ((ztest <= 2.2204460492503131E-16 * ztest0) || (ztest <= 1.0020841800044864E-292)) { s[kase - 1] = 0.0; exitg2 = true; } else { kase--; } } } if (qs == qp1jj + 1) { kase = 3; } else if (qs == m + 2) { kase = 1; } else { kase = 2; q = qs; } } switch (kase) { case 1: f = e[m]; e[m] = 0.0; for (qp1jj = m; qp1jj + 1 >= q + 1; qp1jj--) { ztest0 = s[qp1jj]; eml_xrotg(&ztest0, &f, &ztest, &rt); s[qp1jj] = ztest0; if (qp1jj + 1 > q + 1) { f = -rt * e[qp1jj - 1]; e[qp1jj - 1] *= ztest; } eml_xrot(V, 1 + 17 * qp1jj, 1 + 17 * (m + 1), ztest, rt); } break; case 2: f = e[q - 1]; e[q - 1] = 0.0; for (qp1jj = q; qp1jj + 1 <= m + 2; qp1jj++) { eml_xrotg(&s[qp1jj], &f, &ztest, &rt); f = -rt * e[qp1jj]; e[qp1jj] *= ztest; b_eml_xrot(U, 1 + 28 * qp1jj, 1 + 28 * (q - 1), ztest, rt); } break; case 3: varargin_1[0] = fabs(s[m + 1]); varargin_1[1] = fabs(s[m]); varargin_1[2] = fabs(e[m]); varargin_1[3] = fabs(s[q]); varargin_1[4] = fabs(e[q]); kase = 1; mtmp = varargin_1[0]; if (rtIsNaN(varargin_1[0])) { qp1jj = 2; exitg1 = false; while ((!exitg1) && (qp1jj < 6)) { kase = qp1jj; if (!rtIsNaN(varargin_1[qp1jj - 1])) { mtmp = varargin_1[qp1jj - 1]; exitg1 = true; } else { qp1jj++; } } } if (kase < 5) { while (kase + 1 < 6) { if (varargin_1[kase] > mtmp) { mtmp = varargin_1[kase]; } kase++; } } f = s[m + 1] / mtmp; ztest0 = s[m] / mtmp; ztest = e[m] / mtmp; sqds = s[q] / mtmp; rt = ((ztest0 + f) * (ztest0 - f) + ztest * ztest) / 2.0; ztest0 = f * ztest; ztest0 *= ztest0; if ((rt != 0.0) || (ztest0 != 0.0)) { ztest = sqrt(rt * rt + ztest0); if (rt < 0.0) { ztest = -ztest; } ztest = ztest0 / (rt + ztest); } else { ztest = 0.0; } f = (sqds + f) * (sqds - f) + ztest; ztest0 = sqds * (e[q] / mtmp); for (qp1jj = q + 1; qp1jj <= m + 1; qp1jj++) { eml_xrotg(&f, &ztest0, &ztest, &rt); if (qp1jj > q + 1) { e[qp1jj - 2] = f; } f = ztest * s[qp1jj - 1] + rt * e[qp1jj - 1]; e[qp1jj - 1] = ztest * e[qp1jj - 1] - rt * s[qp1jj - 1]; ztest0 = rt * s[qp1jj]; s[qp1jj] *= ztest; eml_xrot(V, 1 + 17 * (qp1jj - 1), 1 + 17 * qp1jj, ztest, rt); s[qp1jj - 1] = f; eml_xrotg(&s[qp1jj - 1], &ztest0, &ztest, &rt); f = ztest * e[qp1jj - 1] + rt * s[qp1jj]; s[qp1jj] = -rt * e[qp1jj - 1] + ztest * s[qp1jj]; ztest0 = rt * e[qp1jj]; e[qp1jj] *= ztest; b_eml_xrot(U, 1 + 28 * (qp1jj - 1), 1 + 28 * qp1jj, ztest, rt); } e[m] = f; iter++; break; default: if (s[q] < 0.0) { s[q] = -s[q]; c_eml_xscal(-1.0, V, 1 + 17 * q); } kase = q + 1; while ((q + 1 < 17) && (s[q] < s[kase])) { rt = s[q]; s[q] = s[kase]; s[kase] = rt; b_eml_xswap(V, 1 + 17 * q, 1 + 17 * (q + 1)); c_eml_xswap(U, 1 + 28 * q, 1 + 28 * (q + 1)); q = kase; kase++; } iter = 0; m--; break; } } memcpy(&S[0], &s[0], 17U * sizeof(double)); }
static void b_eml_xgesvd(const real32_T A[16], real32_T U[16], real32_T S[4], real32_T V[16]) { real32_T b_A[16]; real32_T s[4]; real32_T e[4]; real32_T work[4]; int32_T i; real32_T Vf[16]; int32_T q; int32_T qs; real32_T ztest0; int32_T ii; int32_T m; real32_T rt; real32_T ztest; int32_T iter; real32_T tiny; real32_T snorm; int32_T exitg3; boolean_T exitg2; real32_T sn; real32_T varargin_1[5]; boolean_T exitg1; real32_T sqds; real32_T b; memcpy(&b_A[0], &A[0], sizeof(real32_T) << 4); for (i = 0; i < 4; i++) { s[i] = 0.0F; e[i] = 0.0F; work[i] = 0.0F; } for (i = 0; i < 16; i++) { U[i] = 0.0F; Vf[i] = 0.0F; } for (q = 0; q < 3; q++) { qs = q + (q << 2); ztest0 = c_eml_xnrm2(4 - q, b_A, qs + 1); if (ztest0 > 0.0F) { if (b_A[qs] < 0.0F) { s[q] = -ztest0; } else { s[q] = ztest0; } c_eml_xscal(4 - q, b_eml_div(1.0, s[q]), b_A, qs + 1); b_A[qs]++; s[q] = -s[q]; } else { s[q] = 0.0F; } for (ii = q + 1; ii + 1 < 5; ii++) { i = q + (ii << 2); if (s[q] != 0.0F) { ztest0 = -eml_div(b_eml_xdotc(4 - q, b_A, qs + 1, b_A, i + 1), b_A[q + (q << 2)]); d_eml_xaxpy(4 - q, ztest0, qs + 1, b_A, i + 1); } e[ii] = b_A[i]; } for (ii = q; ii + 1 < 5; ii++) { U[ii + (q << 2)] = b_A[ii + (q << 2)]; } if (q + 1 <= 2) { ztest0 = d_eml_xnrm2(3 - q, e, q + 2); if (ztest0 == 0.0F) { e[q] = 0.0F; } else { if (e[q + 1] < 0.0F) { e[q] = -ztest0; } else { e[q] = ztest0; } ztest0 = b_eml_div(1.0, e[q]); d_eml_xscal(3 - q, ztest0, e, q + 2); e[q + 1]++; } e[q] = -e[q]; if (e[q] != 0.0F) { for (ii = q + 1; ii + 1 < 5; ii++) { work[ii] = 0.0F; } for (ii = q + 1; ii + 1 < 5; ii++) { e_eml_xaxpy(3 - q, e[ii], b_A, (q + (ii << 2)) + 2, work, q + 2); } for (ii = q + 1; ii + 1 < 5; ii++) { f_eml_xaxpy(3 - q, eml_div(-e[ii], e[q + 1]), work, q + 2, b_A, (q + (ii << 2)) + 2); } } for (ii = q + 1; ii + 1 < 5; ii++) { Vf[ii + (q << 2)] = e[ii]; } } } m = 2; s[3] = b_A[15]; e[2] = b_A[14]; e[3] = 0.0F; for (ii = 0; ii < 4; ii++) { U[12 + ii] = 0.0F; } U[15] = 1.0F; for (q = 2; q > -1; q += -1) { qs = q + (q << 2); if (s[q] != 0.0F) { for (ii = q + 1; ii + 1 < 5; ii++) { i = (q + (ii << 2)) + 1; ztest0 = -eml_div(b_eml_xdotc(4 - q, U, qs + 1, U, i), U[qs]); d_eml_xaxpy(4 - q, ztest0, qs + 1, U, i); } for (ii = q; ii + 1 < 5; ii++) { U[ii + (q << 2)] = -U[ii + (q << 2)]; } U[qs]++; for (ii = 1; ii <= q; ii++) { U[(ii + (q << 2)) - 1] = 0.0F; } } else { for (ii = 0; ii < 4; ii++) { U[ii + (q << 2)] = 0.0F; } U[qs] = 1.0F; } } for (q = 3; q > -1; q += -1) { if ((q + 1 <= 2) && (e[q] != 0.0F)) { i = (q + (q << 2)) + 2; for (ii = q + 1; ii + 1 < 5; ii++) { qs = (q + (ii << 2)) + 2; ztest0 = -eml_div(b_eml_xdotc(3 - q, Vf, i, Vf, qs), Vf[i - 1]); d_eml_xaxpy(3 - q, ztest0, i, Vf, qs); } } for (ii = 0; ii < 4; ii++) { Vf[ii + (q << 2)] = 0.0F; } Vf[q + (q << 2)] = 1.0F; } for (q = 0; q < 4; q++) { ztest0 = e[q]; if (s[q] != 0.0F) { rt = (real32_T)fabs(s[q]); ztest = eml_div(s[q], rt); s[q] = rt; if (q + 1 < 4) { ztest0 = eml_div(e[q], ztest); } c_eml_xscal(4, ztest, U, (q << 2) + 1); } if ((q + 1 < 4) && (ztest0 != 0.0F)) { rt = (real32_T)fabs(ztest0); ztest = eml_div(rt, ztest0); ztest0 = rt; s[q + 1] *= ztest; c_eml_xscal(4, ztest, Vf, ((q + 1) << 2) + 1); } e[q] = ztest0; } iter = 0; tiny = eml_div(1.17549435E-38F, 1.1920929E-7F); snorm = 0.0F; for (ii = 0; ii < 4; ii++) { ztest0 = (real32_T)fabs(s[ii]); ztest = (real32_T)fabs(e[ii]); if ((ztest0 >= ztest) || rtIsNaNF(ztest)) { } else { ztest0 = ztest; } if ((snorm >= ztest0) || rtIsNaNF(ztest0)) { } else { snorm = ztest0; } } while ((m + 2 > 0) && (!(iter >= 75))) { ii = m; do { exitg3 = 0; q = ii + 1; if (ii + 1 == 0) { exitg3 = 1; } else { ztest0 = (real32_T)fabs(e[ii]); if ((ztest0 <= 1.1920929E-7F * ((real32_T)fabs(s[ii]) + (real32_T)fabs (s[ii + 1]))) || (ztest0 <= tiny) || ((iter > 20) && (ztest0 <= 1.1920929E-7F * snorm))) { e[ii] = 0.0F; exitg3 = 1; } else { ii--; } } } while (exitg3 == 0); if (ii + 1 == m + 1) { i = 4; } else { qs = m + 2; i = m + 2; exitg2 = FALSE; while ((exitg2 == FALSE) && (i >= ii + 1)) { qs = i; if (i == ii + 1) { exitg2 = TRUE; } else { ztest0 = 0.0F; if (i < m + 2) { ztest0 = (real32_T)fabs(e[i - 1]); } if (i > ii + 2) { ztest0 += (real32_T)fabs(e[i - 2]); } ztest = (real32_T)fabs(s[i - 1]); if ((ztest <= 1.1920929E-7F * ztest0) || (ztest <= tiny)) { s[i - 1] = 0.0F; exitg2 = TRUE; } else { i--; } } } if (qs == ii + 1) { i = 3; } else if (qs == m + 2) { i = 1; } else { i = 2; q = qs; } } switch (i) { case 1: ztest = e[m]; e[m] = 0.0F; for (qs = m; qs + 1 >= q + 1; qs--) { ztest0 = s[qs]; eml_xrotg(&ztest0, &ztest, &rt, &sn); s[qs] = ztest0; if (qs + 1 > q + 1) { ztest = -sn * e[qs - 1]; e[qs - 1] *= rt; } b_eml_xrot(Vf, (qs << 2) + 1, ((m + 1) << 2) + 1, rt, sn); } break; case 2: ztest = e[q - 1]; e[q - 1] = 0.0F; for (qs = q; qs + 1 <= m + 2; qs++) { eml_xrotg(&s[qs], &ztest, &rt, &sn); ztest = -sn * e[qs]; e[qs] *= rt; b_eml_xrot(U, (qs << 2) + 1, ((q - 1) << 2) + 1, rt, sn); } break; case 3: varargin_1[0] = (real32_T)fabs(s[m + 1]); varargin_1[1] = (real32_T)fabs(s[m]); varargin_1[2] = (real32_T)fabs(e[m]); varargin_1[3] = (real32_T)fabs(s[q]); varargin_1[4] = (real32_T)fabs(e[q]); i = 1; sn = varargin_1[0]; if (rtIsNaNF(varargin_1[0])) { qs = 2; exitg1 = FALSE; while ((exitg1 == FALSE) && (qs < 6)) { i = qs; if (!rtIsNaNF(varargin_1[qs - 1])) { sn = varargin_1[qs - 1]; exitg1 = TRUE; } else { qs++; } } } if (i < 5) { while (i + 1 < 6) { if (varargin_1[i] > sn) { sn = varargin_1[i]; } i++; } } rt = eml_div(s[m + 1], sn); ztest0 = eml_div(s[m], sn); ztest = eml_div(e[m], sn); sqds = eml_div(s[q], sn); b = c_eml_div((ztest0 + rt) * (ztest0 - rt) + ztest * ztest, 2.0); ztest0 = rt * ztest; ztest0 *= ztest0; ztest = 0.0F; if ((b != 0.0F) || (ztest0 != 0.0F)) { ztest = (real32_T)sqrt(b * b + ztest0); if (b < 0.0F) { ztest = -ztest; } ztest = eml_div(ztest0, b + ztest); } ztest += (sqds + rt) * (sqds - rt); ztest0 = sqds * eml_div(e[q], sn); for (qs = q + 1; qs <= m + 1; qs++) { eml_xrotg(&ztest, &ztest0, &rt, &sn); if (qs > q + 1) { e[qs - 2] = ztest; } ztest0 = rt * s[qs - 1]; ztest = sn * e[qs - 1]; e[qs - 1] = rt * e[qs - 1] - sn * s[qs - 1]; b = s[qs]; s[qs] *= rt; b_eml_xrot(Vf, ((qs - 1) << 2) + 1, (qs << 2) + 1, rt, sn); s[qs - 1] = ztest0 + ztest; ztest0 = sn * b; eml_xrotg(&s[qs - 1], &ztest0, &rt, &sn); ztest = rt * e[qs - 1] + sn * s[qs]; s[qs] = -sn * e[qs - 1] + rt * s[qs]; ztest0 = sn * e[qs]; e[qs] *= rt; b_eml_xrot(U, ((qs - 1) << 2) + 1, (qs << 2) + 1, rt, sn); } e[m] = ztest; iter++; break; default: if (s[q] < 0.0F) { s[q] = -s[q]; c_eml_xscal(4, -1.0F, Vf, (q << 2) + 1); } i = q + 1; while ((q + 1 < 4) && (s[q] < s[i])) { rt = s[q]; s[q] = s[i]; s[i] = rt; b_eml_xswap(Vf, (q << 2) + 1, ((q + 1) << 2) + 1); b_eml_xswap(U, (q << 2) + 1, ((q + 1) << 2) + 1); q = i; i++; } iter = 0; m--; break; } } for (qs = 0; qs < 4; qs++) { S[qs] = s[qs]; for (i = 0; i < 4; i++) { V[i + (qs << 2)] = Vf[i + (qs << 2)]; } } }
static void eml_xgesvd(const emxArray_real_T *A, real_T S_data[10], int32_T S_size[1]) { emxArray_real_T *b_A; int32_T mm; int32_T kase; int32_T n; int32_T minnp; real_T s_data[10]; real_T e[10]; emxArray_real_T *work; int32_T nrt; int32_T nct; int32_T q; int32_T qp1; int32_T iter; real_T ztest0; int32_T qs; int32_T mm1; int32_T m; real_T ztest; real_T tiny; real_T snorm; boolean_T exitg3; boolean_T exitg2; real_T sn; real_T sm; real_T varargin_1[5]; boolean_T exitg1; real_T sqds; real_T b; emxInit_real_T(&b_A, 2); mm = b_A->size[0] * b_A->size[1]; b_A->size[0] = A->size[0]; b_A->size[1] = 10; emxEnsureCapacity((emxArray__common *)b_A, mm, (int32_T)sizeof(real_T)); kase = A->size[0] * A->size[1] - 1; for (mm = 0; mm <= kase; mm++) { b_A->data[mm] = A->data[mm]; } n = A->size[0]; if (n <= 10) { minnp = n; } else { minnp = 10; } kase = n + 1; if (kase <= 10) { } else { kase = 10; } kase--; for (mm = 0; mm <= kase; mm++) { s_data[mm] = 0.0; } memset(&e[0], 0, 10U * sizeof(real_T)); b_emxInit_real_T(&work, 1); mm = work->size[0]; work->size[0] = n; emxEnsureCapacity((emxArray__common *)work, mm, (int32_T)sizeof(real_T)); kase = n - 1; for (mm = 0; mm <= kase; mm++) { work->data[mm] = 0.0; } if (A->size[0] == 0) { } else { if (8 <= n) { nrt = 8; } else { nrt = n; } if (n < 1) { kase = 1; } else { kase = n; } nct = kase - 1; if (nct <= 10) { } else { nct = 10; } if (nct >= nrt) { mm = nct; } else { mm = nrt; } for (q = 0; q + 1 <= mm; q++) { qp1 = q + 2; kase = q + n * q; iter = n - q; if (q + 1 <= nct) { ztest0 = c_eml_xnrm2(iter, b_A, kase + 1); if (ztest0 > 0.0) { if (b_A->data[kase] < 0.0) { ztest0 = -ztest0; } s_data[q] = ztest0; eml_xscal(iter, eml_div(1.0, s_data[q]), b_A, kase + 1); b_A->data[kase]++; s_data[q] = -s_data[q]; } else { s_data[q] = 0.0; } } for (qs = qp1; qs < 11; qs++) { mm1 = q + n * (qs - 1); if ((q + 1 <= nct) && (s_data[q] != 0.0)) { ztest0 = eml_xdotc(iter, b_A, kase + 1, b_A, mm1 + 1); ztest0 = -eml_div(ztest0, b_A->data[q + b_A->size[0] * q]); eml_xaxpy(iter, ztest0, kase + 1, b_A, mm1 + 1); } e[qs - 1] = b_A->data[mm1]; } if (q + 1 <= nrt) { ztest0 = d_eml_xnrm2(9 - q, e, qp1); if (ztest0 == 0.0) { e[q] = 0.0; } else { if (e[qp1 - 1] < 0.0) { ztest0 = -ztest0; } e[q] = ztest0; b_eml_xscal(9 - q, eml_div(1.0, e[q]), e, qp1); e[qp1 - 1]++; } e[q] = -e[q]; if ((qp1 <= n) && (e[q] != 0.0)) { for (kase = qp1; kase <= n; kase++) { work->data[kase - 1] = 0.0; } for (qs = qp1; qs < 11; qs++) { b_eml_xaxpy(iter - 1, e[qs - 1], b_A, qp1 + n * (qs - 1), work, qp1); } for (qs = qp1; qs < 11; qs++) { c_eml_xaxpy(iter - 1, eml_div(-e[qs - 1], e[qp1 - 1]), work, qp1, b_A, qp1 + n * (qs - 1)); } } } } m = n + 1; if (10 <= m) { m = 10; } if (nct < 10) { s_data[nct] = b_A->data[nct + b_A->size[0] * nct]; } if (n < m) { s_data[m - 1] = 0.0; } if (nrt + 1 < m) { e[nrt] = b_A->data[nrt + b_A->size[0] * (m - 1)]; } e[m - 1] = 0.0; for (q = 0; q + 1 <= m; q++) { if (s_data[q] != 0.0) { ztest = fabs(s_data[q]); ztest0 = eml_div(s_data[q], ztest); s_data[q] = ztest; if (q + 1 < m) { e[q] = eml_div(e[q], ztest0); } } if ((q + 1 < m) && (e[q] != 0.0)) { ztest = fabs(e[q]); ztest0 = eml_div(ztest, e[q]); e[q] = ztest; s_data[q + 1] *= ztest0; } } mm = m; iter = 0; tiny = eml_div(2.2250738585072014E-308, 2.2204460492503131E-16); snorm = 0.0; for (kase = 0; kase + 1 <= m; kase++) { ztest0 = fabs(s_data[kase]); ztest = fabs(e[kase]); if ((ztest0 >= ztest) || rtIsNaN(ztest)) { ztest = ztest0; } if ((snorm >= ztest) || rtIsNaN(ztest)) { } else { snorm = ztest; } } while ((m > 0) && (!(iter >= 75))) { q = m - 1; exitg3 = FALSE; while (!((exitg3 == 1U) || (q == 0))) { ztest0 = fabs(e[q - 1]); if ((ztest0 <= 2.2204460492503131E-16 * (fabs(s_data[q - 1]) + fabs (s_data[q]))) || (ztest0 <= tiny) || ((iter > 20) && (ztest0 <= 2.2204460492503131E-16 * snorm))) { e[q - 1] = 0.0; exitg3 = TRUE; } else { q--; } } if (q == m - 1) { kase = 4; } else { qs = m; kase = m; exitg2 = FALSE; while ((exitg2 == 0U) && (kase >= q)) { qs = kase; if (kase == q) { exitg2 = TRUE; } else { ztest0 = 0.0; if (kase < m) { ztest0 = fabs(e[kase - 1]); } if (kase > q + 1) { ztest0 += fabs(e[kase - 2]); } ztest = fabs(s_data[kase - 1]); if ((ztest <= 2.2204460492503131E-16 * ztest0) || (ztest <= tiny)) { s_data[kase - 1] = 0.0; exitg2 = TRUE; } else { kase--; } } } if (qs == q) { kase = 3; } else if (qs == m) { kase = 1; } else { kase = 2; q = qs; } } switch (kase) { case 1: ztest = e[m - 2]; e[m - 2] = 0.0; for (qs = m - 1; qs >= q + 1; qs--) { ztest0 = s_data[qs - 1]; eml_xrotg(&ztest0, &ztest, &sm, &sn); s_data[qs - 1] = ztest0; if (qs > q + 1) { kase = qs - 2; ztest = -sn * e[kase]; e[kase] *= sm; } } break; case 2: kase = q - 1; ztest = e[kase]; e[kase] = 0.0; while (q + 1 <= m) { eml_xrotg(&s_data[q], &ztest, &sm, &sn); ztest = -sn * e[q]; e[q] *= sm; q++; } break; case 3: mm1 = m - 2; varargin_1[0] = fabs(s_data[m - 1]); varargin_1[1] = fabs(s_data[mm1]); varargin_1[2] = fabs(e[mm1]); varargin_1[3] = fabs(s_data[q]); varargin_1[4] = fabs(e[q]); kase = 1; sn = varargin_1[0]; if (rtIsNaN(varargin_1[0])) { qs = 2; exitg1 = FALSE; while ((exitg1 == 0U) && (qs < 6)) { kase = qs; if (!rtIsNaN(varargin_1[qs - 1])) { sn = varargin_1[qs - 1]; exitg1 = TRUE; } else { qs++; } } } if (kase < 5) { while (kase + 1 < 6) { if (varargin_1[kase] > sn) { sn = varargin_1[kase]; } kase++; } } sm = eml_div(s_data[m - 1], sn); ztest0 = eml_div(s_data[mm1], sn); ztest = eml_div(e[mm1], sn); sqds = eml_div(s_data[q], sn); b = eml_div((ztest0 + sm) * (ztest0 - sm) + ztest * ztest, 2.0); ztest0 = sm * ztest; ztest0 *= ztest0; ztest = 0.0; if ((b != 0.0) || (ztest0 != 0.0)) { ztest = sqrt(b * b + ztest0); if (b < 0.0) { ztest = -ztest; } ztest = eml_div(ztest0, b + ztest); } ztest += (sqds + sm) * (sqds - sm); ztest0 = sqds * eml_div(e[q], sn); for (qs = q; qs + 1 <= mm1 + 1; qs++) { kase = qs + 1; eml_xrotg(&ztest, &ztest0, &sm, &sn); if (qs + 1 > q + 1) { e[qs - 1] = ztest; } ztest0 = sm * s_data[qs]; ztest = sn * e[qs]; e[qs] = sm * e[qs] - sn * s_data[qs]; b = s_data[kase]; s_data[kase] *= sm; s_data[qs] = ztest0 + ztest; ztest0 = sn * b; eml_xrotg(&s_data[qs], &ztest0, &sm, &sn); ztest = sm * e[qs] + sn * s_data[kase]; s_data[kase] = -sn * e[qs] + sm * s_data[kase]; ztest0 = sn * e[kase]; e[kase] *= sm; } e[m - 2] = ztest; iter++; break; default: if (s_data[q] < 0.0) { s_data[q] = -s_data[q]; } qp1 = q + 1; while ((q + 1 < mm) && (s_data[q] < s_data[qp1])) { ztest = s_data[q]; s_data[q] = s_data[qp1]; s_data[qp1] = ztest; q = qp1; qp1++; } iter = 0; m--; break; } } } emxFree_real_T(&work); emxFree_real_T(&b_A); S_size[0] = minnp; for (qs = 0; qs + 1 <= minnp; qs++) { S_data[qs] = s_data[qs]; } }
/* Function Definitions */ static void b_eml_qrsolve(const emxArray_real_T *A, emxArray_real_T *B, double Y[3], double *rankR) { emxArray_real_T *b_A; int m; int mn; int i23; int itemp; int b_m; int b_mn; double tau_data[3]; signed char jpvt[3]; double work[3]; int i; int k; double vn1[3]; double vn2[3]; int iy; double smax; int i_i; int mmi; int ix; double temp2; int pvt; double atmp; int i_ip1; int lastv; int lastc; boolean_T exitg2; int32_T exitg1; double t; unsigned int b_i; emxInit_real_T(&b_A, 2); m = A->size[0] - 2; mn = (int)fmin(A->size[0], 3.0) - 1; i23 = b_A->size[0] * b_A->size[1]; b_A->size[0] = A->size[0]; b_A->size[1] = 3; emxEnsureCapacity((emxArray__common *)b_A, i23, (int)sizeof(double)); itemp = A->size[0] * A->size[1]; for (i23 = 0; i23 < itemp; i23++) { b_A->data[i23] = A->data[i23]; } b_m = b_A->size[0]; if (b_A->size[0] <= 3) { b_mn = b_A->size[0]; } else { b_mn = 3; } for (i23 = 0; i23 < 3; i23++) { jpvt[i23] = (signed char)(1 + i23); } if (b_A->size[0] == 0) { } else { for (i = 0; i < 3; i++) { work[i] = 0.0; } k = 1; for (iy = 0; iy < 3; iy++) { smax = c_eml_xnrm2(b_m, b_A, k); vn2[iy] = smax; k += b_m; vn1[iy] = smax; } for (i = 0; i + 1 <= b_mn; i++) { i_i = i + i * b_m; mmi = (b_m - i) - 1; itemp = 1; if (3 - i > 1) { ix = i; smax = fabs(vn1[i]); for (k = 2; k <= 3 - i; k++) { ix++; temp2 = fabs(vn1[ix]); if (temp2 > smax) { itemp = k; smax = temp2; } } } pvt = (i + itemp) - 1; if (pvt + 1 != i + 1) { ix = b_m * pvt; iy = b_m * i; for (k = 1; k <= b_m; k++) { smax = b_A->data[ix]; b_A->data[ix] = b_A->data[iy]; b_A->data[iy] = smax; ix++; iy++; } itemp = jpvt[pvt]; jpvt[pvt] = jpvt[i]; jpvt[i] = (signed char)itemp; vn1[pvt] = vn1[i]; vn2[pvt] = vn2[i]; } if (i + 1 < b_m) { atmp = b_A->data[i_i]; temp2 = 0.0; if (1 + mmi <= 0) { } else { smax = d_eml_xnrm2(mmi, b_A, i_i + 2); if (smax != 0.0) { smax = hypot(b_A->data[i_i], smax); if (b_A->data[i_i] >= 0.0) { smax = -smax; } if (fabs(smax) < 1.0020841800044864E-292) { itemp = 0; do { itemp++; b_eml_xscal(mmi, 9.9792015476736E+291, b_A, i_i + 2); smax *= 9.9792015476736E+291; atmp *= 9.9792015476736E+291; } while (!(fabs(smax) >= 1.0020841800044864E-292)); smax = d_eml_xnrm2(mmi, b_A, i_i + 2); smax = hypot(atmp, smax); if (atmp >= 0.0) { smax = -smax; } temp2 = (smax - atmp) / smax; b_eml_xscal(mmi, 1.0 / (atmp - smax), b_A, i_i + 2); for (k = 1; k <= itemp; k++) { smax *= 1.0020841800044864E-292; } atmp = smax; } else { temp2 = (smax - b_A->data[i_i]) / smax; b_eml_xscal(mmi, 1.0 / (b_A->data[i_i] - smax), b_A, i_i + 2); atmp = smax; } } } tau_data[i] = temp2; } else { atmp = b_A->data[i_i]; tau_data[i] = eml_matlab_zlarfg(); } b_A->data[i_i] = atmp; if (i + 1 < 3) { atmp = b_A->data[i_i]; b_A->data[i_i] = 1.0; i_ip1 = (i + (i + 1) * b_m) + 1; if (tau_data[i] != 0.0) { lastv = mmi; itemp = i_i + mmi; while ((lastv + 1 > 0) && (b_A->data[itemp] == 0.0)) { lastv--; itemp--; } lastc = 2 - i; exitg2 = false; while ((!exitg2) && (lastc > 0)) { itemp = i_ip1 + (lastc - 1) * b_m; k = itemp; do { exitg1 = 0; if (k <= itemp + lastv) { if (b_A->data[k - 1] != 0.0) { exitg1 = 1; } else { k++; } } else { lastc--; exitg1 = 2; } } while (exitg1 == 0); if (exitg1 == 1) { exitg2 = true; } } } else { lastv = -1; lastc = 0; } if (lastv + 1 > 0) { if (lastc == 0) { } else { for (iy = 1; iy <= lastc; iy++) { work[iy - 1] = 0.0; } iy = 0; i23 = i_ip1 + b_m * (lastc - 1); itemp = i_ip1; while ((b_m > 0) && (itemp <= i23)) { ix = i_i; smax = 0.0; pvt = itemp + lastv; for (k = itemp; k <= pvt; k++) { smax += b_A->data[k - 1] * b_A->data[ix]; ix++; } work[iy] += smax; iy++; itemp += b_m; } } if (-tau_data[i] == 0.0) { } else { itemp = 0; for (iy = 1; iy <= lastc; iy++) { if (work[itemp] != 0.0) { smax = work[itemp] * -tau_data[i]; ix = i_i; i23 = lastv + i_ip1; for (pvt = i_ip1; pvt <= i23; pvt++) { b_A->data[pvt - 1] += b_A->data[ix] * smax; ix++; } } itemp++; i_ip1 += b_m; } } } b_A->data[i_i] = atmp; } for (iy = i + 1; iy + 1 < 4; iy++) { itemp = (i + b_m * iy) + 1; if (vn1[iy] != 0.0) { smax = fabs(b_A->data[i + b_A->size[0] * iy]) / vn1[iy]; smax = 1.0 - smax * smax; if (smax < 0.0) { smax = 0.0; } temp2 = vn1[iy] / vn2[iy]; temp2 = smax * (temp2 * temp2); if (temp2 <= 1.4901161193847656E-8) { if (i + 1 < b_m) { smax = 0.0; if (mmi < 1) { } else if (mmi == 1) { smax = fabs(b_A->data[itemp]); } else { temp2 = 2.2250738585072014E-308; pvt = itemp + mmi; while (itemp + 1 <= pvt) { atmp = fabs(b_A->data[itemp]); if (atmp > temp2) { t = temp2 / atmp; smax = 1.0 + smax * t * t; temp2 = atmp; } else { t = atmp / temp2; smax += t * t; } itemp++; } smax = temp2 * sqrt(smax); } vn1[iy] = smax; vn2[iy] = vn1[iy]; } else { vn1[iy] = 0.0; vn2[iy] = 0.0; } } else { vn1[iy] *= sqrt(smax); } } } } } *rankR = 0.0; if (mn + 1 > 0) { smax = fmax(A->size[0], 3.0) * fabs(b_A->data[0]) * 2.2204460492503131E-16; k = 0; while ((k <= mn) && (!(fabs(b_A->data[k + b_A->size[0] * k]) <= smax))) { (*rankR)++; k++; } } for (i = 0; i < 3; i++) { Y[i] = 0.0; } for (iy = 0; iy <= mn; iy++) { if (tau_data[iy] != 0.0) { smax = B->data[iy]; i23 = m - iy; for (i = 0; i <= i23; i++) { b_i = ((unsigned int)iy + i) + 2U; smax += b_A->data[((int)b_i + b_A->size[0] * iy) - 1] * B->data[(int)b_i - 1]; } smax *= tau_data[iy]; if (smax != 0.0) { B->data[iy] -= smax; i23 = m - iy; for (i = 0; i <= i23; i++) { b_i = ((unsigned int)iy + i) + 2U; B->data[(int)b_i - 1] -= b_A->data[((int)b_i + b_A->size[0] * iy) - 1] * smax; } } } } for (i = 0; i <= mn; i++) { Y[jpvt[i] - 1] = B->data[i]; } for (iy = 0; iy <= mn; iy++) { itemp = mn - iy; Y[jpvt[itemp] - 1] /= b_A->data[itemp + b_A->size[0] * itemp]; for (i = 0; i < itemp; i++) { Y[jpvt[i] - 1] -= Y[jpvt[itemp] - 1] * b_A->data[i + b_A->size[0] * itemp]; } } emxFree_real_T(&b_A); }