public static IBijectiveFunction <T2, T1> Invert <T1, T2>(IBijectiveFunction <T1, T2> f)
{
if (f is Functions.InvertedBijection)
{
return(((Functions.InvertedBijection <T2, T1>)f).f);
}
return(new Functions.InvertedBijection <T1, T2>(f));
}
internal InvertedBijection(IBijectiveFunction <T1, T2> f)
{
this.f = f;
}