Quote:
Originally Posted by abbabb
Okay i am really new to the forums,
anyway i have a practice sheet to complete for tutorial in a few hours and i need help completing it........anybody? please
it would be nice if someone could really explain it.......but i would appreciate d solution also
thank you......i hooope hope i get a reply!

1. a. phi(x,y,z) = (x^2)(y^3)(z^4)  3(x)(y^2)
grad (phi) =
(2(y^3)(z^4)(x)  3(y^2), 3(x^2)(z^4)(y^2)  6xy, 4(x^2)(y^3)(z^3))
Take the partial derivatives of each term with respect to x, y, and z)
That's all I can remember right now.