Hi there,

Atn (in VB6) or Atan (in newer version) returns a Double value containing the angle whose tangent is the specified number.

Forget about programming and VB - how would I express this in mathematical terms? If I were to talk to a mathematician (which I obviously don't do very often, otherwise I would not ask this question), what would I call an angle whose tangent is the specified number?

Thanks for your enlightenment!