topic Re: How to add arccos to a formula in property set definitions? in AutoCAD MEP Forum

How to add arccos to a formula in property set definitions?

Anonymous — Tue, 10 Feb 2015 18:37:58 GMT

Hi,

I can't see the acos function when adding a formula parameter in property set definitions. Isn't it available?

Using AutoCAD MEP 2015

Thanks

Keith.Brown — Tue, 10 Feb 2015 19:48:27 GMT

No it is not.

VBScript does not have an arccos or arcsin function. It does have an arctan function though so you need to express it in terms of arctan.

ArcSin = Atn(X / Sqr(-X * X + 1))

ArcCos = Atn(-X / Sqr(-X * X + 1)) + 2 * Atn(1)

I believe that my formulas are correct but you might want to double check.

Anonymous — Wed, 11 Feb 2015 11:19:08 GMT

Thanks a lot! That does the trick