Changeset 5571:c3fb88471226 for sage/structure/parent_base.pyx

Timestamp:

08/01/07 18:51:21 (6 years ago)

Author:

David Kohel <kohel@…>

Branch:

default

Message:

Added gram_matrix and differentiated gram_matrix and inner_product_matrix,
additionally fix to parent_base which fixed coercion into base ring of algebras.

File:

• sage/structure/parent_base.pyx (modified) (1 diff)

sage/structure/parent_base.pyx

@@ -49 +49 @@
         self._base = base
         
+    cdef _coerce_c_impl(self,x):
+       if not self._base is self:
+           return self._coerce_try(x,(self._base))
+       else:
+           raise TypeError, "No canonical coercion found."
+
 ##     def x__reduce__(self):
 ##         if HAS_DICTIONARY(self):