2 a 2 --*asin(x) x ___ 2 2 -*\/ a - x + ---------- 2 a
(x/2)*(sqrt(a))^2 - x^2 + ((a^2/2)*asin(x))/a
a a - - 2*x + ------------- 2 ________ / 2 2*\/ 1 - x
a*x -2 + ------------- 3/2 / 2\ 2*\1 - x /
/ 2 \ | 3*x | a*|1 + ------| | 2| \ 1 - x / -------------- 3/2 / 2\ 2*\1 - x /