12.5.7 Planes orthogonal to lines and lines orthogonal to planes in space: orthogonal
The orthogonal command returns and draws a line or plane,
depending on the arguments. The possible arguments are:
A point A and a line L.
orthogonal(A,L) returns and draws the plane through
A orthogonal to L.
- A line L and a plane P.
perpendicular(L,P) returns and draws the plane containing
L that is perpendicular to P.