X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=mjo%2Feja%2Feja_subalgebra.py;h=d7bcf2c3a59638ef8a4176a7ae0dba2a422e6af2;hb=16c76a123e1657907d4559518fbb4ea0ef9a8e2f;hp=ac77f22a691e7cc04138e34cae46f148909de0f8;hpb=98da0ce1d1102057e34646889c10dfa01fa9faec;p=sage.d.git

diff --git a/mjo/eja/eja_subalgebra.py b/mjo/eja/eja_subalgebra.py
index ac77f22..d7bcf2c 100644
--- a/mjo/eja/eja_subalgebra.py
+++ b/mjo/eja/eja_subalgebra.py
@@ -130,7 +130,7 @@ class FiniteDimensionalEuclideanJordanSubalgebra(FiniteDimensionalEuclideanJorda
         1
 
     """
-    def __init__(self, superalgebra, basis, rank=None, category=None):
+    def __init__(self, superalgebra, basis, category=None, check=True):
         self._superalgebra = superalgebra
         V = self._superalgebra.vector_space()
         field = self._superalgebra.base_ring()
@@ -175,12 +175,12 @@ class FiniteDimensionalEuclideanJordanSubalgebra(FiniteDimensionalEuclideanJorda
 
 
         fdeja = super(FiniteDimensionalEuclideanJordanSubalgebra, self)
-        return fdeja.__init__(field,
-                              mult_table,
-                              rank,
-                              prefix=prefix,
-                              category=category,
-                              natural_basis=natural_basis)
+        fdeja.__init__(field,
+                       mult_table,
+                       prefix=prefix,
+                       category=category,
+                       natural_basis=natural_basis,
+                       check=check)
 
 
 
@@ -215,8 +215,12 @@ class FiniteDimensionalEuclideanJordanSubalgebra(FiniteDimensionalEuclideanJorda
         if elt not in self.superalgebra():
             raise ValueError("not an element of this subalgebra")
 
-        coords = self.vector_space().coordinate_vector(elt.to_vector())
-        return self.from_vector(coords)
+        # The extra hackery is because foo.to_vector() might not
+        # live in foo.parent().vector_space()!
+        coords = sum( a*b for (a,b)
+                          in zip(elt.to_vector(),
+                                 self.superalgebra().vector_space().basis()) )
+        return self.from_vector(self.vector_space().coordinate_vector(coords))