Parameters
- Seat width A: The narrow width from the pair to be distributed.
- Seat width B: The wide width from the pair to be distributed.
- Fraction: Fractional part of the widths to be used.
- End of row slack: Extra space between the end standard of the row and the end of available space, given for drilling and assemble purposes.
- Row available length: Space where seats are being distributed.
- Required row length: Space to be used from available length including seats and both sides slack.
- Residue: Remaining space from required row length after seat layout distribution.
Seat widths distribution: Calculation of the quantity of each width from a pair of consecutive given seat widths to fill an available space.