Use GraphTan to plot the tangentplane to this function at (x0,y0)=(1,0).
Why won't it plot? What is the geometric significance of this?
F(s,t)=(cos(s)cos(t), sin(s)cos(t), sin(t)), s=0..2*Pi,t=0..2*Pi
Use the ParamTan command to plot the tangent plane at (s0,t0)=[0,Pi/2]
Why is there no plane at the point? What does this mean geometrically?
Back: Tangent Planes to Implicit Functions