Get Technical
I intend to discuss the equations and explain essential derivations (or proofs) but for now, I am going to simply dump the relevant equations here.
Equations based on cartesian and cylindrical coordinates

Diagram for deriving cartesian coordinates

Superellipse radius

Superellipse angle based on cylindrical coordinates
Equations based on spherical coordinates

Diagram for deriving spherical coordinates

Sphere rho

Superellipsoid rho

Superellipsoid rho, featuring expanded exponents

Sphere x,y,z

Superellipsoid x,y,z featuring expanded exponents

Superellipsoid angle Phi based on spherical coordinates

Superellipse angle Theta based on spherical coordinates