- Math.log((Math.tan(max) + 1.0 / Math.cos(max)) /
- (Math.tan(min) + 1.0 / Math.cos(min))) *
- (128.0 * 2.0**zoom / Math::PI)
+ Math.log((Math.tan(max) + (1.0 / Math.cos(max))) /
+ (Math.tan(min) + (1.0 / Math.cos(min)))) *
+ (128.0 * (2.0**zoom) / Math::PI)