Grad

Grad[e, {var1, var2, ...}] finds the gradient of e with respect to the named variables.

Attributes[Grad] := {Protected, ReadProtected}

Simple examples

In[1]:= Grad[Cos[x + 2*y], {x, y}]
Out[1]= {Sin[x + 2*y]*-1, -2*Sin[x + 2*y]}