# HG changeset patch
# User jwe
# Date 1069101793 0
# Node ID ed92d574b55baae61fa576927168c1e1faa86e71
# Parent  c0121a3b9cbe47b6e72256bd569bc5054540deba
[project @ 2003-11-17 20:43:13 by jwe]

diff -r c0121a3b9cbe -r ed92d574b55b scripts/ChangeLog
--- a/scripts/ChangeLog	Mon Nov 17 20:19:07 2003 +0000
+++ b/scripts/ChangeLog	Mon Nov 17 20:43:13 2003 +0000
@@ -1,7 +1,14 @@
+2003-11-17  John W. Eaton  <jwe@bevo.che.wisc.edu>
+
+	* miscellaneous/path.m: Fix thinko in previous change.
+
 2003-11-14  Gabriele Pannocchia  <g.pannocchia@ing.unipi.it>
 
-	* control/base/dare.m: 
-	* control/base/dlqr.m: 
+	* control/base/dare.m: Check positive (semi)definiteness and
+	dimensions of r (and q). 
+	* control/base/dlqr.m: Check stabilizability of (A,B),
+	detectability of (A,Q), and whether (A,Q) has non minimal modes
+	near unit circle.
 
 	* control/system/is_detectable.m: Use Hautus Lemma.
 	Correct the behavior for discrete-time systems.
diff -r c0121a3b9cbe -r ed92d574b55b scripts/miscellaneous/path.m
--- a/scripts/miscellaneous/path.m	Mon Nov 17 20:19:07 2003 +0000
+++ b/scripts/miscellaneous/path.m	Mon Nov 17 20:43:13 2003 +0000
@@ -40,8 +40,9 @@
 
   if (nargin == 0)
     if (nargout == 0)
-      puts ("\nLOADPATH contains the following directories:\n\n  %s\n\n",
-	    strrep (DEFAULT_LOADPATH, ":", "\n  ");
+      puts ("\nLOADPATH contains the following directories:\n\n  ");
+      puts (strrep (DEFAULT_LOADPATH, ":", "\n  "));
+      puts ("\n\n");
     else
       p = LOADPATH;
     endif
diff -r c0121a3b9cbe -r ed92d574b55b src/ChangeLog
--- a/src/ChangeLog	Mon Nov 17 20:19:07 2003 +0000
+++ b/src/ChangeLog	Mon Nov 17 20:43:13 2003 +0000
@@ -1,5 +1,8 @@
 2003-11-17  John W. Eaton  <jwe@bevo.che.wisc.edu>
 
+	* DLD-FUNCTIONS/qz.cc (qz): Use x.data()+offset instead of &a(i,j).
+	First and third args for dlag2 are const.
+
 	* DLD-FUNCTIONS/sort.cc (Fsort): Use const qualifier as appropriate.
 
 	* DLD-FUNCTIONS/balance.cc (balance): Use data() instead of
diff -r c0121a3b9cbe -r ed92d574b55b src/DLD-FUNCTIONS/qz.cc
--- a/src/DLD-FUNCTIONS/qz.cc	Mon Nov 17 20:19:07 2003 +0000
+++ b/src/DLD-FUNCTIONS/qz.cc	Mon Nov 17 20:43:13 2003 +0000
@@ -107,7 +107,7 @@
 			     F77_CHAR_ARG_LEN_DECL);
 
   F77_RET_T
-  F77_FUNC (dlag2, DLAG2) (double* A, const int& LDA, double* B,
+  F77_FUNC (dlag2, DLAG2) (const double* A, const int& LDA, const double* B,
 			   const int& LDB, const double& SAFMIN,
 			   double& SCALE1, double& SCALE2,
 			   double& WR1, double& WR2, double& WI);
@@ -760,8 +760,10 @@
 		  // fortran_vec instead of &aa(jj,jj) here.
 
 		  double scale1, scale2, wr1, wr2, wi;
+		  const double *aa_ptr = aa.data () + jj*nn+jj;
+		  const double *bb_ptr = bb.data () + jj*nn+jj;
 		  F77_XFCN (dlag2, DLAG2,
-			    (&aa(jj,jj), nn, &bb(jj,jj), nn, safmin,
+			    (aa_ptr, nn, bb_ptr, nn, safmin,
 			     scale1, scale2, wr1, wr2, wi));
 
 #ifdef DEBUG_EIG