Changeset 18e9f2f in git for Singular/ChangeLog.plural

Timestamp:

Jan 29, 2003, 5:05:38 PM (21 years ago)

Author:

Viktor Levandovskyy <levandov@…>

Branches:

(u'spielwiese', 'fe61d9c35bf7c61f2b6cbf1b56e25e2f08d536cc')

Children:

af42cafb12b9a6267ffe6f117e2f0782dfd82213

Parents:

c6d13773a89e347fb0f139eb1f2fb08b4d4e00c4

Message:

adjusments


git-svn-id: file:///usr/local/Singular/svn/trunk@6441 2c84dea3-7e68-4137-9b89-c4e89433aadc

File:

• Singular/ChangeLog.plural (modified) (2 diffs)

Singular/ChangeLog.plural

@@ -7 +7 @@
         DONE: option(redTail) is implemented and tested
         file: exterior2.tst
-        todo: in twostd, running from qring should be
+        DONE(11.12.02) todo: in twostd, running from qring should be
         done another std() in order to get reduced result
         
@@ -13 +13 @@
         version 1.17 - add cvs -m "buckets added", not
         just nCopy
-        todo: syz(i) withthe canonical method, think about
+        todo: syz(i) with the canonical method, think about
         Schreyer and LaScala (double homogenization)
         Print(p) at gr_kstd2.cc:877 is commented out
         
+23.01.03
+        Updated multiplication: now we search for the shortest path.
+        Here is an old code :
+  for (k=2;k<=a;k++)
+  {     
+     t=MATELEM(cMT,k,1);
+     if (t==NULL)   /* not computed yet */
+     {
+        t=p_Copy(MATELEM(cMT,k-1,1),r);
+        t = nc_mm_Mult_p(y,t,r);
+        MATELEM(cMT,k,1) = t;
+        //      omCheckAddr(cMT->m);
+     }
+     t=NULL;
+  }
+  for (m=2;m<=b;m++)
+  {
+     t=MATELEM(cMT,a,m);
+     if (t==NULL)   //not computed yet
+     {
+        t=p_Copy(MATELEM(cMT,a,m-1),r);
+        t = nc_p_Mult_mm(t,x,r);
+        MATELEM(cMT,a,m) = t;
+        //      omCheckAddr(cMT->m);
+     }
+     t=NULL;
+  }
+        
+        Further on, we should compute metrics.
+
+        A function added:
+        matrix ncMatPrint(int a, int b, ring r, int metric)
+        /* returns matrix with the info on noncomm multiplication */
+
+Before these changes, we copied the exec to Singular.Jan.