Extend Base.gradient instead of defining a new one

yuyichao · yuyichao · commit a6edf5a879ed · 2015-04-27T21:24:04.000-04:00
diff --git a/src/Calculus.jl b/src/Calculus.jl
@@ -14,6 +14,8 @@ module Calculus
            jacobian,
            second_derivative
 
+    import Base: gradient
+
     # TODO: Debate type system more carefully
     # abstract BundledFunction
     # abstract ScalarFunction
