solve a bug with par and ^

2015-05-20 18:49:51 +02:00 · 2015-05-20 18:49:51 +02:00 · d2dffa8ff7
commit d2dffa8ff7
parent fc4d8d19f3
1 changed files with 5 additions and 0 deletions
--- a/pymath/operator.py
+++ b/pymath/operator.py
@ -570,6 +570,11 @@ class op(object):
            except AttributeError as e:
                # op has not the attribute priority
                pass
+            try:
+                if int(opl) < 0:
+                    ans = ["(", opl, ")"]
+            except ValueError:
+                pass

            ans = flatten_list([ans])
            if str_join: