Created
June 20, 2016 15:04
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compute angle on unit circle (alternative to built in Math.atan2)
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| const angle = (x, y) => { | |
| let result = Math.atan(y / x); | |
| if (x < 0) { | |
| result += Math.PI; | |
| } else if (y < 0) { | |
| result += 2 * Math.PI; | |
| } | |
| return result; | |
| }; |
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