Tam, I did not say your value of 1+Sqrt(2) was incorrect.

But when 3 guys you happen to have heard of say so, it hardly constitutes a
proof. Why bother to mention them.

If you have any doubts about a particular matter the only way to understand
what goes on is to work it out for yourself with pencil and paper.
Otherwise you will remain dependent on mere acceptance of numbers found in
books - if you can find a book. And has been re-discovered in these
threads - books disagree with each other.

Good books teach you how to work things out for yourself from first
principles. Then you can stop referring to authors. But these days so-called
engineers are more inclined to misplace their blind faith in computer
programs. ;o)

Yours, Reg, G4FGQ