Tangent Plane to a Sphere

​
longitude θ
0
latitude ϕ
0
z1
The equation of the tangent plane to a sphere of radius
r
and center at the origin at latitude
θ
and longitude
ϕ
is
xcos(θ)sin(ϕ)+ysin(θ)sin(ϕ)+zcos(ϕ)=
2
r
.

External Links

Sphere (Wolfram MathWorld)
Tangent Plane (Wolfram MathWorld)

Permanent Citation

Aaron Becker
​
​"Tangent Plane to a Sphere"​
​http://demonstrations.wolfram.com/TangentPlaneToASphere/​
​Wolfram Demonstrations Project​
​Published: February 21, 2012