Add -f for Fraction

2014-01-17 18:10:38 +01:00
parent 8a41031fa8
commit 999fde1c51
1 changed files with 3 additions and 0 deletions
--- a/fraction.py
+++ b/fraction.py
@@ -126,6 +126,9 @@ class Fraction(object):
        steps += ans_frac.simplify()

        return steps
+
+    def __neg__(self):
+        return [Fraction(-self._num,self._denom)]
    
    def __mul__(self, other):
        if type(other) == Fraction: