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rename NonLinear to NonLinearOptimization
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87
unsupported/Eigen/src/NonLinearOptimization/r1mpyq.h
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87
unsupported/Eigen/src/NonLinearOptimization/r1mpyq.h
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template <typename Scalar>
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void ei_r1mpyq(int m, int n, Scalar *a, int
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lda, const Scalar *v, const Scalar *w)
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{
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/* System generated locals */
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int a_dim1, a_offset;
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/* Local variables */
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int i, j, nm1, nmj;
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Scalar cos__, sin__, temp;
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/* Parameter adjustments */
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--w;
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--v;
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a_dim1 = lda;
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a_offset = 1 + a_dim1 * 1;
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a -= a_offset;
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/* Function Body */
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/* apply the first set of givens rotations to a. */
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nm1 = n - 1;
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if (nm1 < 1) {
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/* goto L50; */
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return;
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}
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for (nmj = 1; nmj <= nm1; ++nmj) {
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j = n - nmj;
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if (ei_abs(v[j]) > 1.) {
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cos__ = 1. / v[j];
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}
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if (ei_abs(v[j]) > 1.) {
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/* Computing 2nd power */
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sin__ = ei_sqrt(1. - ei_abs2(cos__));
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}
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if (ei_abs(v[j]) <= 1.) {
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sin__ = v[j];
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}
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if (ei_abs(v[j]) <= 1.) {
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/* Computing 2nd power */
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cos__ = ei_sqrt(1. - ei_abs2(sin__));
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}
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for (i = 1; i <= m; ++i) {
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temp = cos__ * a[i + j * a_dim1] - sin__ * a[i + n * a_dim1];
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a[i + n * a_dim1] = sin__ * a[i + j * a_dim1] + cos__ * a[
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i + n * a_dim1];
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a[i + j * a_dim1] = temp;
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/* L10: */
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}
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/* L20: */
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}
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/* apply the second set of givens rotations to a. */
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for (j = 1; j <= nm1; ++j) {
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if (ei_abs(w[j]) > 1.) {
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cos__ = 1. / w[j];
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}
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if (ei_abs(w[j]) > 1.) {
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/* Computing 2nd power */
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sin__ = ei_sqrt(1. - ei_abs2(cos__));
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}
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if (ei_abs(w[j]) <= 1.) {
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sin__ = w[j];
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}
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if (ei_abs(w[j]) <= 1.) {
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/* Computing 2nd power */
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cos__ = ei_sqrt(1. - ei_abs2(sin__));
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}
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for (i = 1; i <= m; ++i) {
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temp = cos__ * a[i + j * a_dim1] + sin__ * a[i + n * a_dim1];
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a[i + n * a_dim1] = -sin__ * a[i + j * a_dim1] + cos__ * a[
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i + n * a_dim1];
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a[i + j * a_dim1] = temp;
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/* L30: */
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}
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/* L40: */
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}
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/* L50: */
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return;
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/* last card of subroutine r1mpyq. */
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} /* r1mpyq_ */
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