Changeset 7451:4661516c23dc

Timestamp:

11/27/07 13:53:58 (5 years ago)

Author:

Martin Albrecht <malb@…>

Branch:

default

Message:

user friendly error message (fixes: #1279)

File:

• sage/matrix/matrix_integer_dense.pyx (modified) (2 diffs)

sage/matrix/matrix_integer_dense.pyx

@@ -1627 +1627 @@
         sage: add([Q[i]*M[i] for i in range(n)])
         -1
-            
+
+        TESTS:
+            sage: A = random_matrix(ZZ,15,10)
+            sage: A.LLL()
+            Traceback (most recent call last):
+            ...
+            TypeError: Number of rows must not be larger than number of columns.
+        
         ALGORITHM: Uses NTL or fpLLL.
 
@@ -1634 +1641 @@
             used algorithms.
         """
+        if self.nrows() > self.ncols():
+            raise TypeError("Number of rows must not be larger than number of columns.")
 
         import sage.libs.ntl.all