Changeset 5757:1d3a668c8723

Timestamp:

08/13/07 05:39:28 (6 years ago)

Author:

William Stein <wstein@…>

Branch:

default

Parents:

5754:463ada82e212 (diff), 5756:746b9b507839 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

merge

Files:

• sage/libs/pari/gen.pyx (modified) (3 diffs)
• sage/libs/pari/gen.pyx (modified) (1 diff)

sage/libs/pari/gen.pyx

@@ -568 +568 @@
 
     ###########################################
-    # comparisions
+    # comparisons
     # I had to put the call to gcmp in another
     # function since otherwise I can't trap
@@ -632 +632 @@
     def copy(gen self):
         return P.new_gen(forcecopy(self.g))
-
 
     ###########################################
@@ -936 +935 @@
         return t
 
+    def hclassno(gen n):
+        _sig_on
+        return P.new_gen(hclassno(n.g))
+
     def ispseudoprime(gen self, flag=0):
         """

sage/libs/pari/gen.pyx

@@ -4725 +4725 @@
         t0GEN(B)
         return self.new_gen(qfrep0(self.g,t0,flag))
+
+    def matsolve(self, B):
+        """
+        matsolve(B): Solve the linear system Mx=B for an invertible matrix M
+        
+        matsolve(B) uses gaussian elimination to solve Mx=B, where M is
+        invertible and B is a column vector.
+        
+        The corresponding pari library routine is gauss. The gp-interface
+        name matsolve has been given preference here.
+        
+        INPUT:
+            B -- a column vector of the same dimension as the square matrix self
+            
+        EXAMPLES:
+            sage: pari('[1,1;1,-1]').matsolve(pari('[1;0]'))
+            [1/2; 1/2]    
+        """
+        _sig_on
+        t0GEN(B)
+        return self.new_gen(gauss(self.g,t0))
        
     def matker(self, long flag=0):