/ ________ \ ________ | / 2 | / 2 |2*\/ 1 - x 2 | \/ 1 - x - log|------------- + ---| \ |x| |x|/
(1.0 - x^2)^0.5 - log((2*sqrt(1 - x^2))/|x| + 2/|x|)
/ / ________\\ ________ | | / 2 || / 2 |2*\1 + \/ 1 - x /| \/ 1 - x - log|-------------------| \ |x| /
/ / ________\\ ________ | | / 2 || / 2 |2*\1 + \/ 1 - x /| \/ 1 - x - log|-------------------| \ |x| /
/ ________\ ________ | / 2 | / 2 | 1 \/ 1 - x | \/ 1 - x - log(2) - log|--- + -----------| \|x| |x| /