Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
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+/*  -- translated by f2c (version 20240504).
+   You must link the resulting object file with libf2c:
+	on Microsoft Windows system, link with libf2c.lib;
+	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
+	or, if you install libf2c.a in a standard place, with -lf2c -lm
+	-- in that order, at the end of the command line, as in
+		cc *.o -lf2c -lm
+	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
+
+		http://www.netlib.org/f2c/libf2c.zip
+*/
+
+#include "f2c.h"
+
+/* > \brief \b IDAMAX   
+
+    =========== DOCUMENTATION ===========   
+
+   Online html documentation available at   
+              http://www.netlib.org/lapack/explore-html/   
+
+    Definition:   
+    ===========   
+
+         INTEGER FUNCTION IDAMAX(N,DX,INCX)   
+
+         INTEGER INCX,N   
+         DOUBLE PRECISION DX(*)   
+
+
+   > \par Purpose:   
+    =============   
+   >   
+   > \verbatim   
+   >   
+   >    IDAMAX finds the index of the first element having maximum absolute value.   
+   > \endverbatim   
+
+    Arguments:   
+    ==========   
+
+   > \param[in] N   
+   > \verbatim   
+   >          N is INTEGER   
+   >         number of elements in input vector(s)   
+   > \endverbatim   
+   >   
+   > \param[in] DX   
+   > \verbatim   
+   >          DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )   
+   > \endverbatim   
+   >   
+   > \param[in] INCX   
+   > \verbatim   
+   >          INCX is INTEGER   
+   >         storage spacing between elements of DX   
+   > \endverbatim   
+
+    Authors:   
+    ========   
+
+   > \author Univ. of Tennessee   
+   > \author Univ. of California Berkeley   
+   > \author Univ. of Colorado Denver   
+   > \author NAG Ltd.   
+
+   > \ingroup iamax   
+
+   > \par Further Details:   
+    =====================   
+   >   
+   > \verbatim   
+   >   
+   >     jack dongarra, linpack, 3/11/78.   
+   >     modified 3/93 to return if incx .le. 0.   
+   >     modified 12/3/93, array(1) declarations changed to array(*)   
+   > \endverbatim   
+   >   
+    ===================================================================== */
+integer igraphidamax_(integer *n, doublereal *dx, integer *incx)
+{
+    /* System generated locals */
+    integer ret_val, i__1;
+    doublereal d__1;
+
+    /* Local variables */
+    integer i__, ix;
+    doublereal dmax__;
+
+
+/*  -- Reference BLAS level1 routine --   
+    -- Reference BLAS is a software package provided by Univ. of Tennessee,    --   
+    -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--   
+
+
+    =====================================================================   
+
+       Parameter adjustments */
+    --dx;
+
+    /* Function Body */
+    ret_val = 0;
+    if (*n < 1 || *incx <= 0) {
+	return ret_val;
+    }
+    ret_val = 1;
+    if (*n == 1) {
+	return ret_val;
+    }
+    if (*incx == 1) {
+
+/*        code for increment equal to 1 */
+
+	dmax__ = abs(dx[1]);
+	i__1 = *n;
+	for (i__ = 2; i__ <= i__1; ++i__) {
+	    if ((d__1 = dx[i__], abs(d__1)) > dmax__) {
+		ret_val = i__;
+		dmax__ = (d__1 = dx[i__], abs(d__1));
+	    }
+	}
+    } else {
+
+/*        code for increment not equal to 1 */
+
+	ix = 1;
+	dmax__ = abs(dx[1]);
+	ix += *incx;
+	i__1 = *n;
+	for (i__ = 2; i__ <= i__1; ++i__) {
+	    if ((d__1 = dx[ix], abs(d__1)) > dmax__) {
+		ret_val = i__;
+		dmax__ = (d__1 = dx[ix], abs(d__1));
+	    }
+	    ix += *incx;
+	}
+    }
+    return ret_val;
+
+/*     End of IDAMAX */
+
+} /* igraphidamax_ */
+