Re: Worldmap mercator projection - Latitude to Y calculation.

On 2026/1/16 10:8:22, Paul wrote:

[]

> Your coordinates for NYC, where did you get those coords ???
> There is an article in Wikipedia I used, complete with a tiny
> map widget when you click an icon near the coord info.
> 
> 40 42 46     -74 0 22       New York City value (Wikipedia)
> 
> 40.71277778  -74.00611111   DMS to D via https://www.latlong.net/degrees-minutes-seconds-to-decimal-degrees

You used a website to work out 40 + 42/60 + 46/3600? :-)
[]

> I think the equation is pretty close. But I'm not happy that
> there is an error still there.
> 
>     Paul

Yes, this has been a puzzle, for what seems like a simple question!

-- 
J. P. Gilliver. UMRA: 1960/<1985 MB++G()ALIS-Ch++(p)Ar++T+H+Sh0!:`)DNAf

aibohphobia, n., The fear of palindromes.