Re: Worldmap mercator projection - Latitude to Y calculation. - last try

Paul,

> If you take a math course, you're taught it is as Ellis explains.

Good for Ellis I suppose.  How does that help me, having googled and found 
that different professions use those different names as they bloody wel 
please ?

Also, in my very first posy I included "where ln(...) is log(...) / 
log(10)", indicating that I already had the idea that "ln()" *PROBABLY* was 
the natural logarithm, and how to get it using the standard base-10 log().

I ALREADY TRIED THAT, and still didn't get the expected result.

A few posts back I've provided the origional formule, the replacements I had 
to make ( "ln()" and "sec()" ) and gave several intermediate results.

*Please* put that formule into whatever you want to use and see where the 
intermediate results differ from mine - so I know were the problem is and 
can try to fix it.

Regards,
Rudy Wieser