whitespace fixes
This commit is contained in:
Axel Kohlmeyer
@ -1,13 +1,13 @@
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/* fortran/dsteqr.f -- translated by f2c (version 20200916).
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You must link the resulting object file with libf2c:
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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http://www.netlib.org/f2c/libf2c.zip
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http://www.netlib.org/f2c/libf2c.zip
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*/
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#ifdef __cplusplus
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@ -155,9 +155,9 @@ f"> */
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/* > \ingroup auxOTHERcomputational */
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/* ===================================================================== */
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/* Subroutine */ int dsteqr_(char *compz, integer *n, doublereal *d__,
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doublereal *e, doublereal *z__, integer *ldz, doublereal *work,
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integer *info, ftnlen compz_len)
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/* Subroutine */ int dsteqr_(char *compz, integer *n, doublereal *d__,
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doublereal *e, doublereal *z__, integer *ldz, doublereal *work,
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integer *info, ftnlen compz_len)
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{
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/* System generated locals */
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integer z_dim1, z_offset, i__1, i__2;
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@ -175,34 +175,34 @@ f"> */
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integer lsv;
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doublereal tst, eps2;
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integer lend, jtot;
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extern /* Subroutine */ int dlae2_(doublereal *, doublereal *, doublereal
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*, doublereal *, doublereal *);
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extern /* Subroutine */ int dlae2_(doublereal *, doublereal *, doublereal
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*, doublereal *, doublereal *);
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extern logical lsame_(char *, char *, ftnlen, ftnlen);
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extern /* Subroutine */ int dlasr_(char *, char *, char *, integer *,
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integer *, doublereal *, doublereal *, doublereal *, integer *,
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ftnlen, ftnlen, ftnlen);
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extern /* Subroutine */ int dlasr_(char *, char *, char *, integer *,
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integer *, doublereal *, doublereal *, doublereal *, integer *,
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ftnlen, ftnlen, ftnlen);
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doublereal anorm;
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extern /* Subroutine */ int dswap_(integer *, doublereal *, integer *,
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doublereal *, integer *), dlaev2_(doublereal *, doublereal *,
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doublereal *, doublereal *, doublereal *, doublereal *,
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doublereal *);
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extern /* Subroutine */ int dswap_(integer *, doublereal *, integer *,
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doublereal *, integer *), dlaev2_(doublereal *, doublereal *,
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doublereal *, doublereal *, doublereal *, doublereal *,
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doublereal *);
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integer lendm1, lendp1;
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extern doublereal dlapy2_(doublereal *, doublereal *), dlamch_(char *,
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ftnlen);
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extern doublereal dlapy2_(doublereal *, doublereal *), dlamch_(char *,
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ftnlen);
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integer iscale;
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extern /* Subroutine */ int dlascl_(char *, integer *, integer *,
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doublereal *, doublereal *, integer *, integer *, doublereal *,
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integer *, integer *, ftnlen), dlaset_(char *, integer *, integer
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*, doublereal *, doublereal *, doublereal *, integer *, ftnlen);
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extern /* Subroutine */ int dlascl_(char *, integer *, integer *,
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doublereal *, doublereal *, integer *, integer *, doublereal *,
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integer *, integer *, ftnlen), dlaset_(char *, integer *, integer
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*, doublereal *, doublereal *, doublereal *, integer *, ftnlen);
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doublereal safmin;
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extern /* Subroutine */ int dlartg_(doublereal *, doublereal *,
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doublereal *, doublereal *, doublereal *);
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extern /* Subroutine */ int dlartg_(doublereal *, doublereal *,
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doublereal *, doublereal *, doublereal *);
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doublereal safmax;
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extern /* Subroutine */ int xerbla_(char *, integer *, ftnlen);
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extern doublereal dlanst_(char *, integer *, doublereal *, doublereal *,
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ftnlen);
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extern /* Subroutine */ int dlasrt_(char *, integer *, doublereal *,
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integer *, ftnlen);
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extern doublereal dlanst_(char *, integer *, doublereal *, doublereal *,
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ftnlen);
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extern /* Subroutine */ int dlasrt_(char *, integer *, doublereal *,
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integer *, ftnlen);
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integer lendsv;
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doublereal ssfmin;
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integer nmaxit, icompz;
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@ -246,38 +246,38 @@ f"> */
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*info = 0;
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if (lsame_(compz, (char *)"N", (ftnlen)1, (ftnlen)1)) {
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icompz = 0;
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icompz = 0;
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} else if (lsame_(compz, (char *)"V", (ftnlen)1, (ftnlen)1)) {
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icompz = 1;
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icompz = 1;
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} else if (lsame_(compz, (char *)"I", (ftnlen)1, (ftnlen)1)) {
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icompz = 2;
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icompz = 2;
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} else {
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icompz = -1;
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icompz = -1;
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}
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if (icompz < 0) {
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*info = -1;
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*info = -1;
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} else if (*n < 0) {
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*info = -2;
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*info = -2;
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} else if (*ldz < 1 || icompz > 0 && *ldz < max(1,*n)) {
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*info = -6;
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*info = -6;
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"DSTEQR", &i__1, (ftnlen)6);
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return 0;
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i__1 = -(*info);
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xerbla_((char *)"DSTEQR", &i__1, (ftnlen)6);
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return 0;
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}
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/* Quick return if possible */
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if (*n == 0) {
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return 0;
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return 0;
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}
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if (*n == 1) {
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if (icompz == 2) {
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z__[z_dim1 + 1] = 1.;
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}
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return 0;
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if (icompz == 2) {
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z__[z_dim1 + 1] = 1.;
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}
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return 0;
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}
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/* Determine the unit roundoff and over/underflow thresholds. */
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@ -295,7 +295,7 @@ f"> */
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/* matrix. */
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if (icompz == 2) {
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dlaset_((char *)"Full", n, n, &c_b9, &c_b10, &z__[z_offset], ldz, (ftnlen)4);
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dlaset_((char *)"Full", n, n, &c_b9, &c_b10, &z__[z_offset], ldz, (ftnlen)4);
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}
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nmaxit = *n * 30;
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@ -310,25 +310,25 @@ f"> */
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L10:
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if (l1 > *n) {
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goto L160;
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goto L160;
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}
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if (l1 > 1) {
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e[l1 - 1] = 0.;
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e[l1 - 1] = 0.;
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}
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if (l1 <= nm1) {
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i__1 = nm1;
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for (m = l1; m <= i__1; ++m) {
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tst = (d__1 = e[m], abs(d__1));
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if (tst == 0.) {
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goto L30;
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}
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if (tst <= sqrt((d__1 = d__[m], abs(d__1))) * sqrt((d__2 = d__[m
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+ 1], abs(d__2))) * eps) {
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e[m] = 0.;
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goto L30;
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}
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i__1 = nm1;
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for (m = l1; m <= i__1; ++m) {
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tst = (d__1 = e[m], abs(d__1));
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if (tst == 0.) {
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goto L30;
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}
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if (tst <= sqrt((d__1 = d__[m], abs(d__1))) * sqrt((d__2 = d__[m
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+ 1], abs(d__2))) * eps) {
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e[m] = 0.;
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goto L30;
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}
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/* L20: */
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}
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}
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}
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m = *n;
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@ -339,7 +339,7 @@ L30:
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lendsv = lend;
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l1 = m + 1;
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if (lend == l) {
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goto L10;
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goto L10;
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}
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/* Scale submatrix in rows and columns L to LEND */
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@ -348,31 +348,31 @@ L30:
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anorm = dlanst_((char *)"M", &i__1, &d__[l], &e[l], (ftnlen)1);
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iscale = 0;
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if (anorm == 0.) {
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goto L10;
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goto L10;
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}
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if (anorm > ssfmax) {
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iscale = 1;
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i__1 = lend - l + 1;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmax, &i__1, &c__1, &d__[l], n,
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info, (ftnlen)1);
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i__1 = lend - l;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmax, &i__1, &c__1, &e[l], n,
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info, (ftnlen)1);
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iscale = 1;
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i__1 = lend - l + 1;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmax, &i__1, &c__1, &d__[l], n,
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info, (ftnlen)1);
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i__1 = lend - l;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmax, &i__1, &c__1, &e[l], n,
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info, (ftnlen)1);
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} else if (anorm < ssfmin) {
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iscale = 2;
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i__1 = lend - l + 1;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmin, &i__1, &c__1, &d__[l], n,
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info, (ftnlen)1);
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i__1 = lend - l;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmin, &i__1, &c__1, &e[l], n,
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info, (ftnlen)1);
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iscale = 2;
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i__1 = lend - l + 1;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmin, &i__1, &c__1, &d__[l], n,
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info, (ftnlen)1);
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i__1 = lend - l;
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dlascl_((char *)"G", &c__0, &c__0, &anorm, &ssfmin, &i__1, &c__1, &e[l], n,
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info, (ftnlen)1);
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}
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/* Choose between QL and QR iteration */
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if ((d__1 = d__[lend], abs(d__1)) < (d__2 = d__[l], abs(d__2))) {
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lend = lsv;
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l = lendsv;
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lend = lsv;
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l = lendsv;
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}
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if (lend > l) {
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@ -382,120 +382,120 @@ L30:
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/* Look for small subdiagonal element. */
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L40:
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if (l != lend) {
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lendm1 = lend - 1;
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i__1 = lendm1;
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for (m = l; m <= i__1; ++m) {
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if (l != lend) {
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lendm1 = lend - 1;
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i__1 = lendm1;
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for (m = l; m <= i__1; ++m) {
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/* Computing 2nd power */
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d__2 = (d__1 = e[m], abs(d__1));
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tst = d__2 * d__2;
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if (tst <= eps2 * (d__1 = d__[m], abs(d__1)) * (d__2 = d__[m
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+ 1], abs(d__2)) + safmin) {
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goto L60;
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}
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d__2 = (d__1 = e[m], abs(d__1));
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tst = d__2 * d__2;
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if (tst <= eps2 * (d__1 = d__[m], abs(d__1)) * (d__2 = d__[m
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+ 1], abs(d__2)) + safmin) {
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goto L60;
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}
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/* L50: */
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}
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}
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}
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}
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m = lend;
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m = lend;
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L60:
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if (m < lend) {
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e[m] = 0.;
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}
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p = d__[l];
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if (m == l) {
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goto L80;
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}
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if (m < lend) {
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e[m] = 0.;
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}
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p = d__[l];
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if (m == l) {
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goto L80;
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}
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/* If remaining matrix is 2-by-2, use DLAE2 or SLAEV2 */
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/* to compute its eigensystem. */
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if (m == l + 1) {
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if (icompz > 0) {
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dlaev2_(&d__[l], &e[l], &d__[l + 1], &rt1, &rt2, &c__, &s);
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work[l] = c__;
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work[*n - 1 + l] = s;
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dlasr_((char *)"R", (char *)"V", (char *)"B", n, &c__2, &work[l], &work[*n - 1 + l], &
|
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z__[l * z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (
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ftnlen)1);
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} else {
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dlae2_(&d__[l], &e[l], &d__[l + 1], &rt1, &rt2);
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}
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d__[l] = rt1;
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d__[l + 1] = rt2;
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e[l] = 0.;
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l += 2;
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if (l <= lend) {
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goto L40;
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}
|
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goto L140;
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}
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if (m == l + 1) {
|
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if (icompz > 0) {
|
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dlaev2_(&d__[l], &e[l], &d__[l + 1], &rt1, &rt2, &c__, &s);
|
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work[l] = c__;
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work[*n - 1 + l] = s;
|
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dlasr_((char *)"R", (char *)"V", (char *)"B", n, &c__2, &work[l], &work[*n - 1 + l], &
|
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z__[l * z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (
|
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ftnlen)1);
|
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} else {
|
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dlae2_(&d__[l], &e[l], &d__[l + 1], &rt1, &rt2);
|
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}
|
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d__[l] = rt1;
|
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d__[l + 1] = rt2;
|
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e[l] = 0.;
|
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l += 2;
|
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if (l <= lend) {
|
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goto L40;
|
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}
|
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goto L140;
|
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}
|
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|
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if (jtot == nmaxit) {
|
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goto L140;
|
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}
|
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++jtot;
|
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if (jtot == nmaxit) {
|
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goto L140;
|
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}
|
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++jtot;
|
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|
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/* Form shift. */
|
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|
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g = (d__[l + 1] - p) / (e[l] * 2.);
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r__ = dlapy2_(&g, &c_b10);
|
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g = d__[m] - p + e[l] / (g + d_sign(&r__, &g));
|
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g = (d__[l + 1] - p) / (e[l] * 2.);
|
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r__ = dlapy2_(&g, &c_b10);
|
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g = d__[m] - p + e[l] / (g + d_sign(&r__, &g));
|
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|
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s = 1.;
|
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c__ = 1.;
|
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p = 0.;
|
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s = 1.;
|
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c__ = 1.;
|
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p = 0.;
|
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|
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/* Inner loop */
|
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|
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mm1 = m - 1;
|
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i__1 = l;
|
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for (i__ = mm1; i__ >= i__1; --i__) {
|
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f = s * e[i__];
|
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b = c__ * e[i__];
|
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dlartg_(&g, &f, &c__, &s, &r__);
|
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if (i__ != m - 1) {
|
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e[i__ + 1] = r__;
|
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}
|
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g = d__[i__ + 1] - p;
|
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r__ = (d__[i__] - g) * s + c__ * 2. * b;
|
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p = s * r__;
|
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d__[i__ + 1] = g + p;
|
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g = c__ * r__ - b;
|
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mm1 = m - 1;
|
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i__1 = l;
|
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for (i__ = mm1; i__ >= i__1; --i__) {
|
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f = s * e[i__];
|
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b = c__ * e[i__];
|
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dlartg_(&g, &f, &c__, &s, &r__);
|
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if (i__ != m - 1) {
|
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e[i__ + 1] = r__;
|
||||
}
|
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g = d__[i__ + 1] - p;
|
||||
r__ = (d__[i__] - g) * s + c__ * 2. * b;
|
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p = s * r__;
|
||||
d__[i__ + 1] = g + p;
|
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g = c__ * r__ - b;
|
||||
|
||||
/* If eigenvectors are desired, then save rotations. */
|
||||
|
||||
if (icompz > 0) {
|
||||
work[i__] = c__;
|
||||
work[*n - 1 + i__] = -s;
|
||||
}
|
||||
if (icompz > 0) {
|
||||
work[i__] = c__;
|
||||
work[*n - 1 + i__] = -s;
|
||||
}
|
||||
|
||||
/* L70: */
|
||||
}
|
||||
}
|
||||
|
||||
/* If eigenvectors are desired, then apply saved rotations. */
|
||||
|
||||
if (icompz > 0) {
|
||||
mm = m - l + 1;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"B", n, &mm, &work[l], &work[*n - 1 + l], &z__[l
|
||||
* z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
||||
}
|
||||
if (icompz > 0) {
|
||||
mm = m - l + 1;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"B", n, &mm, &work[l], &work[*n - 1 + l], &z__[l
|
||||
* z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
||||
}
|
||||
|
||||
d__[l] -= p;
|
||||
e[l] = g;
|
||||
goto L40;
|
||||
d__[l] -= p;
|
||||
e[l] = g;
|
||||
goto L40;
|
||||
|
||||
/* Eigenvalue found. */
|
||||
|
||||
L80:
|
||||
d__[l] = p;
|
||||
d__[l] = p;
|
||||
|
||||
++l;
|
||||
if (l <= lend) {
|
||||
goto L40;
|
||||
}
|
||||
goto L140;
|
||||
++l;
|
||||
if (l <= lend) {
|
||||
goto L40;
|
||||
}
|
||||
goto L140;
|
||||
|
||||
} else {
|
||||
|
||||
@ -504,121 +504,121 @@ L80:
|
||||
/* Look for small superdiagonal element. */
|
||||
|
||||
L90:
|
||||
if (l != lend) {
|
||||
lendp1 = lend + 1;
|
||||
i__1 = lendp1;
|
||||
for (m = l; m >= i__1; --m) {
|
||||
if (l != lend) {
|
||||
lendp1 = lend + 1;
|
||||
i__1 = lendp1;
|
||||
for (m = l; m >= i__1; --m) {
|
||||
/* Computing 2nd power */
|
||||
d__2 = (d__1 = e[m - 1], abs(d__1));
|
||||
tst = d__2 * d__2;
|
||||
if (tst <= eps2 * (d__1 = d__[m], abs(d__1)) * (d__2 = d__[m
|
||||
- 1], abs(d__2)) + safmin) {
|
||||
goto L110;
|
||||
}
|
||||
d__2 = (d__1 = e[m - 1], abs(d__1));
|
||||
tst = d__2 * d__2;
|
||||
if (tst <= eps2 * (d__1 = d__[m], abs(d__1)) * (d__2 = d__[m
|
||||
- 1], abs(d__2)) + safmin) {
|
||||
goto L110;
|
||||
}
|
||||
/* L100: */
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
m = lend;
|
||||
m = lend;
|
||||
|
||||
L110:
|
||||
if (m > lend) {
|
||||
e[m - 1] = 0.;
|
||||
}
|
||||
p = d__[l];
|
||||
if (m == l) {
|
||||
goto L130;
|
||||
}
|
||||
if (m > lend) {
|
||||
e[m - 1] = 0.;
|
||||
}
|
||||
p = d__[l];
|
||||
if (m == l) {
|
||||
goto L130;
|
||||
}
|
||||
|
||||
/* If remaining matrix is 2-by-2, use DLAE2 or SLAEV2 */
|
||||
/* to compute its eigensystem. */
|
||||
|
||||
if (m == l - 1) {
|
||||
if (icompz > 0) {
|
||||
dlaev2_(&d__[l - 1], &e[l - 1], &d__[l], &rt1, &rt2, &c__, &s)
|
||||
;
|
||||
work[m] = c__;
|
||||
work[*n - 1 + m] = s;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"F", n, &c__2, &work[m], &work[*n - 1 + m], &
|
||||
z__[(l - 1) * z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1,
|
||||
(ftnlen)1);
|
||||
} else {
|
||||
dlae2_(&d__[l - 1], &e[l - 1], &d__[l], &rt1, &rt2);
|
||||
}
|
||||
d__[l - 1] = rt1;
|
||||
d__[l] = rt2;
|
||||
e[l - 1] = 0.;
|
||||
l += -2;
|
||||
if (l >= lend) {
|
||||
goto L90;
|
||||
}
|
||||
goto L140;
|
||||
}
|
||||
if (m == l - 1) {
|
||||
if (icompz > 0) {
|
||||
dlaev2_(&d__[l - 1], &e[l - 1], &d__[l], &rt1, &rt2, &c__, &s)
|
||||
;
|
||||
work[m] = c__;
|
||||
work[*n - 1 + m] = s;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"F", n, &c__2, &work[m], &work[*n - 1 + m], &
|
||||
z__[(l - 1) * z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1,
|
||||
(ftnlen)1);
|
||||
} else {
|
||||
dlae2_(&d__[l - 1], &e[l - 1], &d__[l], &rt1, &rt2);
|
||||
}
|
||||
d__[l - 1] = rt1;
|
||||
d__[l] = rt2;
|
||||
e[l - 1] = 0.;
|
||||
l += -2;
|
||||
if (l >= lend) {
|
||||
goto L90;
|
||||
}
|
||||
goto L140;
|
||||
}
|
||||
|
||||
if (jtot == nmaxit) {
|
||||
goto L140;
|
||||
}
|
||||
++jtot;
|
||||
if (jtot == nmaxit) {
|
||||
goto L140;
|
||||
}
|
||||
++jtot;
|
||||
|
||||
/* Form shift. */
|
||||
|
||||
g = (d__[l - 1] - p) / (e[l - 1] * 2.);
|
||||
r__ = dlapy2_(&g, &c_b10);
|
||||
g = d__[m] - p + e[l - 1] / (g + d_sign(&r__, &g));
|
||||
g = (d__[l - 1] - p) / (e[l - 1] * 2.);
|
||||
r__ = dlapy2_(&g, &c_b10);
|
||||
g = d__[m] - p + e[l - 1] / (g + d_sign(&r__, &g));
|
||||
|
||||
s = 1.;
|
||||
c__ = 1.;
|
||||
p = 0.;
|
||||
s = 1.;
|
||||
c__ = 1.;
|
||||
p = 0.;
|
||||
|
||||
/* Inner loop */
|
||||
|
||||
lm1 = l - 1;
|
||||
i__1 = lm1;
|
||||
for (i__ = m; i__ <= i__1; ++i__) {
|
||||
f = s * e[i__];
|
||||
b = c__ * e[i__];
|
||||
dlartg_(&g, &f, &c__, &s, &r__);
|
||||
if (i__ != m) {
|
||||
e[i__ - 1] = r__;
|
||||
}
|
||||
g = d__[i__] - p;
|
||||
r__ = (d__[i__ + 1] - g) * s + c__ * 2. * b;
|
||||
p = s * r__;
|
||||
d__[i__] = g + p;
|
||||
g = c__ * r__ - b;
|
||||
lm1 = l - 1;
|
||||
i__1 = lm1;
|
||||
for (i__ = m; i__ <= i__1; ++i__) {
|
||||
f = s * e[i__];
|
||||
b = c__ * e[i__];
|
||||
dlartg_(&g, &f, &c__, &s, &r__);
|
||||
if (i__ != m) {
|
||||
e[i__ - 1] = r__;
|
||||
}
|
||||
g = d__[i__] - p;
|
||||
r__ = (d__[i__ + 1] - g) * s + c__ * 2. * b;
|
||||
p = s * r__;
|
||||
d__[i__] = g + p;
|
||||
g = c__ * r__ - b;
|
||||
|
||||
/* If eigenvectors are desired, then save rotations. */
|
||||
|
||||
if (icompz > 0) {
|
||||
work[i__] = c__;
|
||||
work[*n - 1 + i__] = s;
|
||||
}
|
||||
if (icompz > 0) {
|
||||
work[i__] = c__;
|
||||
work[*n - 1 + i__] = s;
|
||||
}
|
||||
|
||||
/* L120: */
|
||||
}
|
||||
}
|
||||
|
||||
/* If eigenvectors are desired, then apply saved rotations. */
|
||||
|
||||
if (icompz > 0) {
|
||||
mm = l - m + 1;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"F", n, &mm, &work[m], &work[*n - 1 + m], &z__[m
|
||||
* z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
||||
}
|
||||
if (icompz > 0) {
|
||||
mm = l - m + 1;
|
||||
dlasr_((char *)"R", (char *)"V", (char *)"F", n, &mm, &work[m], &work[*n - 1 + m], &z__[m
|
||||
* z_dim1 + 1], ldz, (ftnlen)1, (ftnlen)1, (ftnlen)1);
|
||||
}
|
||||
|
||||
d__[l] -= p;
|
||||
e[lm1] = g;
|
||||
goto L90;
|
||||
d__[l] -= p;
|
||||
e[lm1] = g;
|
||||
goto L90;
|
||||
|
||||
/* Eigenvalue found. */
|
||||
|
||||
L130:
|
||||
d__[l] = p;
|
||||
d__[l] = p;
|
||||
|
||||
--l;
|
||||
if (l >= lend) {
|
||||
goto L90;
|
||||
}
|
||||
goto L140;
|
||||
--l;
|
||||
if (l >= lend) {
|
||||
goto L90;
|
||||
}
|
||||
goto L140;
|
||||
|
||||
}
|
||||
|
||||
@ -626,32 +626,32 @@ L130:
|
||||
|
||||
L140:
|
||||
if (iscale == 1) {
|
||||
i__1 = lendsv - lsv + 1;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmax, &anorm, &i__1, &c__1, &d__[lsv],
|
||||
n, info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmax, &anorm, &i__1, &c__1, &e[lsv], n,
|
||||
info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv + 1;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmax, &anorm, &i__1, &c__1, &d__[lsv],
|
||||
n, info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmax, &anorm, &i__1, &c__1, &e[lsv], n,
|
||||
info, (ftnlen)1);
|
||||
} else if (iscale == 2) {
|
||||
i__1 = lendsv - lsv + 1;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmin, &anorm, &i__1, &c__1, &d__[lsv],
|
||||
n, info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmin, &anorm, &i__1, &c__1, &e[lsv], n,
|
||||
info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv + 1;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmin, &anorm, &i__1, &c__1, &d__[lsv],
|
||||
n, info, (ftnlen)1);
|
||||
i__1 = lendsv - lsv;
|
||||
dlascl_((char *)"G", &c__0, &c__0, &ssfmin, &anorm, &i__1, &c__1, &e[lsv], n,
|
||||
info, (ftnlen)1);
|
||||
}
|
||||
|
||||
/* Check for no convergence to an eigenvalue after a total */
|
||||
/* of N*MAXIT iterations. */
|
||||
|
||||
if (jtot < nmaxit) {
|
||||
goto L10;
|
||||
goto L10;
|
||||
}
|
||||
i__1 = *n - 1;
|
||||
for (i__ = 1; i__ <= i__1; ++i__) {
|
||||
if (e[i__] != 0.) {
|
||||
++(*info);
|
||||
}
|
||||
if (e[i__] != 0.) {
|
||||
++(*info);
|
||||
}
|
||||
/* L150: */
|
||||
}
|
||||
goto L190;
|
||||
@ -663,33 +663,33 @@ L160:
|
||||
|
||||
/* Use Quick Sort */
|
||||
|
||||
dlasrt_((char *)"I", n, &d__[1], info, (ftnlen)1);
|
||||
dlasrt_((char *)"I", n, &d__[1], info, (ftnlen)1);
|
||||
|
||||
} else {
|
||||
|
||||
/* Use Selection Sort to minimize swaps of eigenvectors */
|
||||
|
||||
i__1 = *n;
|
||||
for (ii = 2; ii <= i__1; ++ii) {
|
||||
i__ = ii - 1;
|
||||
k = i__;
|
||||
p = d__[i__];
|
||||
i__2 = *n;
|
||||
for (j = ii; j <= i__2; ++j) {
|
||||
if (d__[j] < p) {
|
||||
k = j;
|
||||
p = d__[j];
|
||||
}
|
||||
i__1 = *n;
|
||||
for (ii = 2; ii <= i__1; ++ii) {
|
||||
i__ = ii - 1;
|
||||
k = i__;
|
||||
p = d__[i__];
|
||||
i__2 = *n;
|
||||
for (j = ii; j <= i__2; ++j) {
|
||||
if (d__[j] < p) {
|
||||
k = j;
|
||||
p = d__[j];
|
||||
}
|
||||
/* L170: */
|
||||
}
|
||||
if (k != i__) {
|
||||
d__[k] = d__[i__];
|
||||
d__[i__] = p;
|
||||
dswap_(n, &z__[i__ * z_dim1 + 1], &c__1, &z__[k * z_dim1 + 1],
|
||||
&c__1);
|
||||
}
|
||||
}
|
||||
if (k != i__) {
|
||||
d__[k] = d__[i__];
|
||||
d__[i__] = p;
|
||||
dswap_(n, &z__[i__ * z_dim1 + 1], &c__1, &z__[k * z_dim1 + 1],
|
||||
&c__1);
|
||||
}
|
||||
/* L180: */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
L190:
|
||||
@ -700,5 +700,5 @@ L190:
|
||||
} /* dsteqr_ */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user