bramp.net

Recently I had the need to convert Ordnance Survey East/North coordinates to Latitude and Longitude. By using the resources available on the OS site I wrote the following piece of PHP code: <?php // Converts OS Easting/Northing to Lat/Long // by bramp function Marc($bf0, $n, $PHI0, $PHI) { /* Compute meridional arc. Input: - ellipsoid semi ...