Hi. Suppose we have a vector V with two variables x and y. How to take n times gradient from this vector by using Mathematica? Please help me.
If I try to interpret what you ask, then you probably mean "how to recursively evaluate the gradient of a function with a vector"; then:
foo[v_] := (* do something *) v^2 n = 3; v = {x, y}; Nest[Grad[foo[#], #] &, v, n]
Thank you very much.
