Posted by Matthew on 01/14/08 19:06

Iván Sánchez Ortega emailed this:
> Matthew wrote:
>
>> I want to use pi to 30 decimal places, php's pi has a max of 20, for some
>> complex long/lat calculations.
>
> Use arbitrary precision math libraries.
>
> Alternatively, use the proj4 library (calling the "proj" executable from
> php) for your geographical projection needs.

Thanks for the pointer Ivan - I'll have a look at proj4.
Cheers.

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