Calculator name  Summary 
Shortest distance between two lines 
Calculates the shortest distance between two lines in space.

Plane equation given three points 
Calculates the plane equation given three points.

Volume of a tetrahedron and a parallelepiped 
Calculates the volumes of a tetrahedron and a parallelepiped given four vertices.

Shortest distance between a point and a plane 
Calculates the shortest distance in space between a point and a plane.

Cartesian to Spherical coordinates 
Converts from Cartesian (x,y,z) to Spherical (r,θ,φ) coordinates in 3dimensions. 
Cartesian to Cylindrical coordinates 
Converts from Cartesian (x,y,z) to Cylindrical (ρ,θ,z) coordinates in 3dimensions. 
Spherical to Cartesian coordinates 
Converts from Spherical (r,θ,φ) to Cartesian (x,y,z) coordinates in 3dimensions. 
Spherical to Cylindrical coordinates 
Converts from Spherical (r,θ,φ) to Cylindrical (ρ,θ,z) coordinates in 3dimensions. 
Cylindrical to Cartesian coordinates 
Converts from Cylindrical (ρ,θ,z) to Cartesian (x,y,z) coordinates in 3dimensions. 
Cylindrical to Spherical coordinates 
Converts from Cylindrical (ρ,θ,z) to Spherical (r,θ,φ) coordinates in 3dimensions. 