cdm/src/main/java/ucar/unidata/geoloc/projection/AlbersEqualArea.java
public double getScale(double lat) {
    lat = Math.toRadians(lat);
    double n = Math.cos(lat);
    double d = Math.sqrt(C - 2 * n * Math.sin(lat));
    return n / d;
  }
public double getScale(double lat) {
    lat = Math.toRadians(lat);
    double n = Math.cos(lat);
    double d = Math.sqrt(C - 2 * n * Math.sin(lat));
    return n / d;
  }
public double getScale ( double lat ) { lat = Math . toRadians ( lat ) ; double n = Math . cos ( lat ) ; double d = Math . sqrt ( C - 2 * n * Math . sin ( lat ) ) ; return n / d ; }
Get the scale at the given lat.

@param lat lat to use
@return scale factor at that latitude
Get the scale at the given lat .