I'm not a GIS professional.
I'm trying to write a code to convert from lat/long to UTM coordinates using this truncated method given in Wikipedia:
https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system#Simplified_formulae
What values I should use for lambda_0 (reference meridian of longitude)?
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button that enables you to format any highlighted code nicely. – PolyGeo♦ Apr 12 '18 at 21:30