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Line 535: -- math in Annex B.2, of Ordnance Survey document ~~local~~ aq = a2 * a2 local e2 = ( aq - b2 * b2 ) / aq Line 546: local n0 = 11 local phi_alt repeat ~~local~~ phi_alt = phi ny = a2 / sqrt ( 1. - e2 * sin(phi) * sin(phi) ) phi = atan ( z2 + e2 * ny * sin(phi) , p2 )

Module:Ordnance Survey coordinates/sandbox: Difference between revisions