lib/dydx/function.rb in dydx-0.1.314 vs lib/dydx/function.rb in dydx-0.1.412

@@ -8,10 +8,10 @@
     def <=(algebra)
       @algebra = algebra
       self
     end
 
-    def differentiate(sym=:x)
+    def differentiate(sym = :x)
       @algebra.differentiate(sym)
     end
     alias_method :d, :differentiate
 
     def to_s