minor simplification of mercator projection
minor simplification of mercator projection

zerebubuth/tangram,DHaylock/tangram,xvilan/tangram,ceseale/tangram,zerebubuth/tangram,DHaylock/tangram,taylorhxu/tangram,rosamcgee/tangram,rosamcgee/tangram,DHaylock/tangram,TitoAgudelo/tangram,taylorhxu/tangram,ceseale/tangram,taylorhxu/tangram,zerebubuth/tangram,TitoAgudelo/tangram,tangrams/tangram,tangrams/tangram,xvilan/tangram,rosamcgee/tangram,ceseale/tangram,TitoAgudelo/tangram,xvilan/tangram