index.js
function pixelToLatitude (y, zoom) {
  var latRad = Math.atan(Math.sinh(Math.PI * (1 - 2 * y / zScale(zoom))))
  return toDegrees(latRad)
}
function pixelToLatitude (y, zoom) {
  var latRad = Math.atan(Math.sinh(Math.PI * (1 - 2 * y / zScale(zoom))))
  return toDegrees(latRad)
}
function pixelToLatitude ( y , zoom ) { var latRad = Math . atan ( Math . sinh ( Math . PI * ( 1 - 2 * y / zScale ( zoom ) ) ) ) return toDegrees ( latRad ) }
Convert a pixel to it's latitude value given a zoom level.

@param {number} y
@param {number} zoom
@return {number} latitude
@example
var lat = lonlat.pixelToLatitude(50000, 9) //= 39.1982053488948
Convert a pixel to it s latitude value given a zoom level .