eja: add a random comment.

diff --git a/mjo/eja/eja_element.py b/mjo/eja/eja_element.py
index c5f0e77599e821ba153726c519b9f8dc9f9c8532..a5880c4c4c3fc083726fbf2adcef6ee071e7cd63 100644 (file)
--- a/mjo/eja/eja_element.py
+++ b/mjo/eja/eja_element.py
@@ -1008,6 +1008,10 @@ class FiniteDimensionalEuclideanJordanAlgebraElement(IndexedFreeModuleElement):
         """
         B = self.parent().natural_basis()
         W = self.parent().natural_basis_space()
+
+        # This is just a manual "from_vector()", but of course
+        # matrix spaces aren't vector spaces in sage, so they
+        # don't have a from_vector() method.
         return W.linear_combination(zip(B,self.to_vector()))