Changeset 7524:1107ab67d0c3

Timestamp:

12/02/07 15:16:43 (5 years ago)

Author:

Carl Witty <cwitty@…>

Branch:

default

Message:

Fix coercion from scalar to matrix_modn_dense (#1374)

File:

• sage/matrix/matrix_modn_dense.pyx (modified) (4 diffs)

sage/matrix/matrix_modn_dense.pyx

@@ -74 +74 @@
     sage: A = M([1,0,0,1])
     sage: A - int(-1)
-    [1 0]
-    [0 1]
+    [2 0]
+    [0 2]
     sage: B = M([4,0,0,1])
     sage: B - int(-1)
-    [4 0]
-    [0 1]
+    [0 0]
+    [0 2]
 """
 
@@ -193 +193 @@
         p = self._base_ring.characteristic()
 
+        R = self.base_ring()
+
         # scalar?
         if not isinstance(entries, list):
@@ -203 +205 @@
                 pass
             else:
-                e = entries   # coerce to an unsigned int
-                e %= p
+                e = R(entries)
                 if e != 0:
                     for i from 0 <= i < self._nrows:
@@ -216 +217 @@
         k = 0
         cdef mod_int n
-        R = self.base_ring()
 
         if coerce: