Changeset 7b31394 in git for Singular/LIB/gfan.lib

Timestamp:

Sep 28, 2016, 11:58:00 AM (8 years ago)

Author:

Yue <ren@…>

Branches:

(u'fieker-DuVal', '117eb8c30fc9e991c4decca4832b1d19036c4c65')(u'spielwiese', '38077648e7239f98078663eb941c3c979511150a')

Children:

3df2f4ae1201d1fe6ffc6d7f6ef327add47fb224

Parents:

49eda62d37d7ece68028f6776f4a08a6813eccd9

Message:

chg: added faceContainig and removed undocumented procedures

File:

• Singular/LIB/gfan.lib (modified) (1 diff)

Singular/LIB/gfan.lib

@@ -434 +434 @@
 }
 
+proc faceContaining()
+"USAGE:   faceContaining(c,w);  c cone, w intvec/bigintmat
+ASSUME:  containsInSupport(c,w)==1
+RETURN:  cone, the face of c containing w in its relative interior
+EXAMPLE: example faceContaining; shows an example
+"
+{
+
+}
+example
+{
+  "EXAMPLE:"; echo = 2;
+  intmat M[2][2]=
+    1,0,
+    0,1;
+  cone c=coneViaPoints(M);
+  faceContaining(c,intvec(1,0));
+  faceContaining(c,intvec(0,1));
+  faceContaining(c,intvec(1,1));
+  faceContaining(c,intvec(0,0));
+}
+
 proc facets()
 "USAGE:   facets(c);  c cone