Hi,
I found this code that I copied from copilot and modified for my specific needs and works somewhat but needs some major corrections.
// Constants for NAD83 Georgia West (FIPS 1002)
var A = 6378137.0; // Semi-major axis for NAD83
var F = 1 / 298.257222101; // Flattening for NAD83
var E2 = (2 * F) - (F * F); // Eccentricity squared
var centralMeridian = -84.16666666666667 * (PI / 180); // Central meridian for Georgia West (degrees to radians)
var latitudeOfOrigin = 30.0 // Latitude of origin (degrees to radians)
var scaleFactor = 0.9999; // Scale factor
var falseEasting = 2296583.333333 * 0.3048006096012192; // False easting in meters (1 US foot = 0.3048006096012192 meters)
var falseNorthing = 0.0; // False northing in meters
// Function to convert State Plane (NAD83) to