From: Michael Orlitzky <michael@orlitzky.com>
Date: Sun, 22 Nov 2020 16:03:16 +0000 (-0500)
Subject: eja: fix one() in the trivial HadamardEJA.
X-Git-Url: http://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=7473b9edbbba0d2be79e4d7aeb2114d1a0090a78;p=sage.d.git

eja: fix one() in the trivial HadamardEJA.
---

diff --git a/mjo/eja/eja_algebra.py b/mjo/eja/eja_algebra.py
index e436bf1..c40c8be 100644
--- a/mjo/eja/eja_algebra.py
+++ b/mjo/eja/eja_algebra.py
@@ -2070,7 +2070,11 @@ class HadamardEJA(RationalBasisEuclideanJordanAlgebra):
                                           check_axioms=False,
                                           **kwargs)
         self.rank.set_cache(n)
-        self.one.set_cache( sum(self.gens()) )
+
+        if n == 0:
+            self.one.set_cache( self.zero() )
+        else:
+            self.one.set_cache( sum(self.gens()) )
 
     @staticmethod
     def _max_random_instance_size():