find the parametric representation of the surface for the part of the sphere x^2+y^2+z^2=4 that lies above the cone z=sqrt(x^2+y^2). how do i determine what is phi if i write it in terms of phi and theta? is phi the angle between x axis and the cone or y axis and the cone? i know that phi is from 0 to pi/4..

Question

anonymous · Answer

Are you trying to convert the part of the sphere into spherical coordinates (radius, theta, phi) or into a parametric surface r(s, t) = x(s, t)i + y(s, t)j + z(s, t)k?

anonymous · Answer

yes