public static RootSum Add(RootTerm x, RootTerm y)
{
if (x.IsZero)
{
return(new RootSum(y, RootTerm.Zero));
}
if (y.IsZero)
{
return(new RootSum(x, RootTerm.Zero));
}
if (x.X == y.X)
{
return(new RootSum((x.C + y.C) * RootTerm.Sqrt(x.X), RootTerm.Zero));
}
if (x.IsReal && y.IsReal)
{
if (x.X < y.X)
{
return(new RootSum(x, y));
}
return(new RootSum(y, x));
}
if (x.IsReal)
{
return(new RootSum(x, y));
}
if (y.IsReal)
{
return(new RootSum(y, x));
}
if (x.X > y.X)
{
return(new RootSum(x, y));
}
return(new RootSum(y, x));
}
