openwebwork/pg — pull request #25 by dpvc (2013-06-15 15:44:37+00:00)
Title: Fixes problem with pi (and i,j,k) not being retained as a named constant

Fixes problem with `pi` (and `i`, `j`, `k`) not being retained as a named constant, but being replaced by their values. This was introduced accidentally by commit b261ba03f0e87c867efdbf32b8e2692e1485cdd1