The Cahill–Concialdi Bat map projection was created by Luca Concialdi in 2015 and is essentially a rearrangement of the conformal variant of the butterfly map projection developed by Bernard J. S.
* two integers perform division, the result is an integer. The fractional part is truncated. * For example, 5 / 4 is 1 (not 1.25) and 10 / 4 is 2 (not 2.5). To get an accurate result * with the ...