I have looked around on the internet a little bit, but I am unable to find a function or equation for inverse/arcsine. I was able to find Inverse Cosine, but inverse sin doesn't seem to exist. Does anyone know how to use inverse sine in delphi?

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Have you checked the SDL MathPack from Lohinger, or efg's website? JEDI has math functions too. Just checking, but you are looking for something other than the ArcSin() function?

It may be due to the version I am using, but the ArcSin function does not exist.

What version are you using?

I believe it is delphi32.

Did you add uses Math; ?

No I didn't, thanks for the help.

How do I add it?

Where the other uses are...

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