Re: [APML] Instantaneous rate of field rotation

[Leon Aslan <laslan@earthlink.net>]

I have uploaded a screen capture of the Mathcad document and it can be
viewed here:

http://home.earthlink.net/~laslan/images/field_rotation.jpg

it's about 50K..

If I mis-entered the original expression, please feel free to let me know so
I can correct it and redo the expression.
Also a slight note is that the continuation lines for the expression start
with a period(.) which is mathcad's notation, this is NOT a multiplication,
but rather an addition or subtraction from the previous line.

Clear skies,
Leon


Leon Aslan wrote:

> Hello folks,
> long time follower of the list/archive, first time poster :-)
>
> I've been reading Michael Covington book AP for the amateur,
> specifically Appendix B where he does and excellent job of
> mathematically describing drift and field rotation. In section B.3.2 he
> decided to omit the mathematical expression for the instantaneous field
> rotation and understandably so, as the math gets a little hairy (as we
> say).. I plugged the expression into Mathcad and solved symbolically for
> d/dh(delta.rho) and the expression is a bit long but not too difficult
> to solve numerically. Anyway, if anyone is interested, I will be glad to
> share the results with fellow AP'ers..
>
> Clear skies,
> Leon Aslan
>
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