1) Find explicit nonparametric representation of line segment connecting P0(x0,y0,z0) and P1(x1,y1,z1)?
2) Find explicit nonparametric representation for circle that lies on plane parallel to zx plane with center at (x0,y0,z0) and radius r?
3) The ellipse on plane parallel to yz plane has major radius A along z axis, minor radius B along y axis, and center at (xc,yc,zc). Determine explicit nonparametric representation of ellipse?
4) Find parametric representation of ellipse in (c) with parameter u in range 0\leq u\leq 1?