setup

test-error asin(1.0001)
test-error asin(-1.0001)

test asin(-1) is -(pi) / 2
test asin(-0.5) is -(pi) / 6
test asin(0) is 0
test asin(0.5) is pi / 6
test asin(1) is pi / 2

//repeat with i = -1 to 1 step 0.01
//	test sin(asin(i)) is i
//end repeat

teardown