Inverse Sine Function

[who cares?]

Hey!

I am doing a program for school (something with geometry) and I need to use the Inverse Sine function. I haven't found it in the Turing help files, so I am wondering, does it exist? If so, what is it? Thanks.

[Mazer]

octopi wrote a sine inverse function a while back, but apparently there was a problem with it. i think tony fixed it up and made this function:

code:

function arcsin ( x : real ) : real if x*x not= 1 then   result arctand(sqrt(abs((x*x) / (1 - (x *x))))) else     result 90 end if end arcsin

here's the thread:
http://www.compsci.ca/v2/viewtopic.php?t=744&highlight=arcsin