how to calculate angle difference code example

Example 1: how to calculate angle difference

public static double angleDiff(double a, double b) {
    return ((((a - b) % 360F) + 540F) % 360F) - 180F;
}

Example 2: javascript find smallest difference between angles

var x = Math.PI * 1.9;
var y = Math.PI * 0.1;
Math.atan2(Math.sin(x-y), Math.cos(x-y)); // -Math.PI * 0.2

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Javascript Example

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