eja: append to an existing TODO.

[sage.d.git] / mjo / eja / TODO

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index bb2b7f30069dda7ba5b1c63ec7062f1ab397c596..fb89e5edc905cea8475fb2349b3318e4aad22947 100644 (file)
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -7,11 +7,6 @@
    the nontrivial factor. On the other hand, it's nice that we can
    test out some alternate code paths...
 
    the nontrivial factor. On the other hand, it's nice that we can
    test out some alternate code paths...
 

-4. Can we hit "x" with the deortho matrix and delegate to the
-   _rational_algebra to speed up minimal_polynomial?
-
-5. In CartesianProductEJA we already know the multiplication table and
-   inner product matrix. Refactor things until it's no longer
-   necessary to duplicate that work.
-
-6. Eliminate the matrix_space() override in CartesianProductEJA.
+4. Conjecture: if x = (x1,x2), then det(x) = det(x1)det(x2). This
+   should be used to fix the fact that det(x) is monstrously slow in
+   Cartesian product algebras, and thus randomly in the doctests.