RD>> Does 1.e3 mean one multiplied by a thousand,
 TM> Yes. It means 1 * 10^3.
RD>> and 1.e-3 mean one multiplied by minus a thousand?
 TM> No, it means 1 * 10^(-3), or in other words 1 divided by a
 TM> thousand.
I would just like to say thank you to all that have explain the above to me,
I now understand and feel confident to move on.
Yours Spasm Robert.
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