Recent content by katielouise

thanks for your help :)

oh yeah of course! So i do the cross product of ∇ø and b? The vector I get as a result of that, will I then have to divide it by its magnitude to make it into the unit vector?

Sorry, I'm still a bit confused. I want a vector that is normal to b but tangent to ∇ø, not normal to both?

I have the following question: Given that ø = (x^2)y + cos(z) find the unit vector n which is both tangent to the surface of constant ø at (1,1,∏/2) and normal to the vector b = x + y - 2z (where x y and z are the unit vectors) I have calculated ∇ø = 2x + y - z (again where x y and z are...