From: Michael Orlitzky <michael@orlitzky.com>
Date: Wed, 3 Mar 2021 20:03:18 +0000 (-0500)
Subject: eja: fix the matrix EJA trace inner-product.
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=8ccf1d8af20cea17897aed21426b17872fd0fca3;p=sage.d.git

eja: fix the matrix EJA trace inner-product.
---

diff --git a/mjo/eja/eja_algebra.py b/mjo/eja/eja_algebra.py
index 18138f4..1cf6fa5 100644
--- a/mjo/eja/eja_algebra.py
+++ b/mjo/eja/eja_algebra.py
@@ -1737,7 +1737,7 @@ class MatrixEJA:
         """
         # We take the norm (absolute value) because Octonions() isn't
         # smart enough yet to coerce its one() into the base field.
-        return (X*Y).trace().abs()
+        return (X*Y).trace().real().abs()
 
 class RealEmbeddedMatrixEJA(MatrixEJA):
     @staticmethod