X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=check%2Ftime_lw_P.cpp;h=2f7569f0cb52a007944940f10a342309d38fd6b0;hp=3145093ae2a016eea9405ccd705c58152fc12ca4;hb=e29584838dc377a2c2b00731a0ffdbdc3425f214;hpb=70ff026226b1a1a7530e8a1d934b98ad42795a1d

diff --git a/check/time_lw_P.cpp b/check/time_lw_P.cpp
index 3145093a..2f7569f0 100644
--- a/check/time_lw_P.cpp
+++ b/check/time_lw_P.cpp
@@ -22,18 +22,26 @@
  */
 
 #include "times.h"
-#include "time_lw_w101n.h"
 
 static unsigned test(void)
 {
-    matrix m(101,101);
-    for (unsigned r=0; r<101; ++r) {
-        for (unsigned c=0; c<10; ++c) {
-            m.set(r,
-                  unsigned(ex_to_numeric(w101_numeric[r][2*c+1]).to_int()-1),
-                  w101_numeric[r][2*c+2]);
-        }
-    }
+    // This is a pattern that comes up in graph theory:
+    const unsigned n = 10;
+    matrix m(n*n+1,n*n+1);
+    for (unsigned i=1; i<=n*n; ++i)
+        m.set(i-1,i-1,1);
+    for (unsigned i=1; i<=n*n; ++i)
+        if (!(i%n))
+            m.set(i-1,n*n,1);
+    for (unsigned i=1; i<=n*n; ++i)
+        if (!((i-1)%n))
+            m.set(n*n,i-1,n-(i-1)/n);
+    for(unsigned i=1; i<=n; ++i)
+        for (unsigned j=1; j<=n; ++j)
+            if (i-j)
+                for (unsigned k=1; k<n; ++k)
+                    m.set((i-1)*n+k-1,(j-1)*n+k,n+1-j);
+    
     ex det = m.determinant();
     
     if (det!=numeric("75810815066186520")) {