From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 3 Dec 2020 17:52:15 +0000 (-0500)
Subject: eja: update a TODO with a better idea.
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=2eb57d9d9487ef2533c177d2771a7c47b2528c4b;p=sage.d.git

eja: update a TODO with a better idea.
---

diff --git a/mjo/eja/TODO b/mjo/eja/TODO
index 9f80537..427a953 100644
--- a/mjo/eja/TODO
+++ b/mjo/eja/TODO
@@ -16,7 +16,9 @@ sage: F = J.base_ring()
 sage: a0 = (1/4)*X[4]**2*X[6]**2 - (1/2)*X[2]*X[5]*X[6]**2 - (1/2)*X[3]*X[4]*X[6]*X[7] + (F(2).sqrt()/2)*X[1]*X[5]*X[6]*X[7] + (1/4)*X[3]**2*X[7]**2 - (1/2)*X[0]*X[5]*X[7]**2 + (F(2).sqrt()/2)*X[2]*X[3]*X[6]*X[8] - (1/2)*X[1]*X[4]*X[6*X[8] - (1/2)*X[1]*X[3]*X[7]*X[8] + (F(2).sqrt()/2)*X[0]*X[4]*X[7]*X[8] + (1/4)*X[1]**2*X[8]**2 - (1/2)*X[0]*X[2]*X[8]**2 - (1/2)*X[2]*X[3]**2*X[9] + (F(2).sqrt()/2)*X[1]*X[3]*X[4]*X[9] - (1/2)*X[0]*X[4]**2*X[9] - (1/2)*X[1]**2*X[5]*X[9] + X[0]*X[2]*X[5]*X[9]
 
 5. Compute the scalar in the general natural_inner_product() for
-   matrices, so no overrides are necessary.
+   matrices, so no overrides are necessary. Actually, this is
+   probably better implemented as a dimension_over_reals() method
+   that returns 1, 2, or 4.
 
 6. The main EJA element constructor is happy to convert between
    e.g. HadamardEJA(3) and JordanSpinEJA(3).