Very nice! I have spend the last hour trying to display the Poincaré disk[1], but to no avail. I have z * (cos(1.57 * (a^2+b^2+1)^(1/2))/sin(1.57 * (a^2+b^2+1

Very nice! I have spend the last hour trying to display the Poincaré disk[1], but to no avail. I have z * (cos(1.57 * (a^2+b^2+1)^(1/2))/sin(1.57 * (a^2+b^2+1)^(1/2))), which project the coordinates to the infinite on a circle. But this is only a fancy zoom, straight lines are not projected to circles. [1]https://en.wikipedia.org/wiki/Poincar%C3%A9_disk_model https://en.wikipedia.org/wiki/Poincar%C3%A9_disk_model Edit: Wrong thread