asin(8*x)
8 -------------- ___________ / 2 \/ 1 - 64*x
512*x -------------- 3/2 / 2\ \1 - 64*x /
/ 2 \ | 192*x | 512*|1 + ---------| | 2| \ 1 - 64*x / ------------------- 3/2 / 2\ \1 - 64*x /