MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Erf[InverseErf] -- making a function and its inverse cancel


How can I get an expression like Erf[InverseErf[0,1/3]] to simplify to
1/3?

Cos[ArcCos[1/3]] gives 1/3. Is there some assumption that I'm missing?

thanks,
Mike


  • Prev by Date: Re: benchmark...why don't you send it back?
  • Next by Date: this expression doesn't do what I expected - what's wrong?
  • Previous by thread: Re: nullspaces
  • Next by thread: Re: Erf[InverseErf] -- making a function and its inverse cancel