What is the Arccos method in C#?

Question

Which is the arccos method in c#? I found one acos but i am not sure its the correct one. http://msdn.microsoft.com/en-us/library/system.math.acos.aspx

Answer 1

Math.Acos() is the cos^-1 function in .NET, so you have it right.

Answer 2

Yes, that is the one.

Arccosine:

Arccosine is the inverse function of cosine. It is also written as arccos or cos- 1. If y = cos x, then x = arccos y.

The definition on the page that you linked to:

Returns the angle whose cosine is the specified number.