Relative positioning of the planes online calculator

Online calculator which will help you to find the relative positioning of the planes.
Two planes can have three variants of the mutual arrangement relative to each other: the plane can be parallel, they can be perpendicular, planes can intersect.

Specify the equations of the planes:
x + y + z + = 0
x + y + z + = 0

The planes are mutually perpendicular. The planes are parallel. The planes are the same. Intersect, but not perpendicular.