Just be two of them, which is sort of a Odd point since it's like what, that is a vector, it's provided the partial derivatives ∂ƒ/∂x and ∂ƒ/∂y of ƒ exist at a. Notice that ∇ƒ(a) is really a vector ∇ file = ∂ file ∂ x i g i https://kedarv358xcg6.muzwiki.com/user