Easy way to keeping angles between -179 and 180 degrees

Question

Is there an easy way to convert an angle (in degrees) to be between -179 and 180? I\'m sure I could use mod (%) and some if statements, but it gets ugly:

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Answer 1

A short way which handles negative numbers is

double mod = x - Math.floor((x + 179.0) / 360) * 360;

Cast to taste.

BTW: It appears that angles between (180.0, 181.0) are undefined. Shouldn't the range be (-180, 180] (exclusive, inclusive]