>Hilmar,
>
>This was a great response with lots of valuable information and explanations in it.
>
>Thank you!
You are welcome.
I should add that mathematics (and science, too) is a sort of hobby for me - I enjoy reading a lot in these areas.
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
