Inverse Trig Functions: Arcsin Topics Salman Khan, Khan Academy Item Size 24.3M Introduction to the inverse trig function arcsin Addeddate 2011-07-09 18:18:47 Identifier KA-converted-JGU74wbZMLg ...

set x to 20 + arccos (0.5) or set x to 20- arccos (0.5) or anything else causes the program to hang. Same with any inverse trig function. Regular trig functions seem to work. Dunbaratu mentioned this ...