This whole thread is starting to resemble something from a Monty Python sketch
Monty Python: The Argument Sketch
I'm astounded that AnFI hasn't used the 'S' word yet
Still, his red-faced and screaming Herr Hilter impression
is jolly amusing to a mere know-nothing Ukrainian tractor driver - but at least I can spell - even if I don't understand all this advanced mathematics about conning angles