Calculate ATMOS Ceiling Speaker Positions

Ceiling speaker positions?

Where do the ceiling loudspeakers have to be positioned in a Dolby ATMOS system?

There are many ...

... graphics with angle information for the positioning of ceiling loudspeakers, which the manufacturers of receivers provide in the operating instructions. However, they do not provide the calculation for a defined room, screen, seating positions, and platform. Calculating the theoretically optimal AND possible positions for the specific room is one of the most complex tasks in planning a home theater.
 
Unit of measurement:
Decimal separator:
Room length (mm):
Valid range: 4000 - 12000 mm
Room width (mm):
Valid range: 3000 - 12000 mm
Room height (mm):
Valid range: 2000 - 5000 mm
Seating distance to the wall (mm):
Seating distance to the front wall.
Valid range: 2000 - 12000 mm
Note