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JavaScript - Math.sin in degrees
5 points
In JavaScript Math.sin() method works using radians by default. To switch it to degrees some simple operation is necessary ((Math.PI / 180) * degrees). In this article we can see custom Math.sin() function that works on degrees.
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function calculateSine(degrees) {2
var radians = (Math.PI / 180) * degrees;3
return Math.sin(radians);4
}5
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// Example:8
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console.log( calculateSine(0) ); // 010
console.log( calculateSine(30) ); // ~0.511
console.log( calculateSine(45) ); // 0.707106781186547512
console.log( calculateSine(60) ); // 0.866025403784438613
console.log( calculateSine(90) ); // 114
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console.log( calculateSine(180) ); // ~016
console.log( calculateSine(270) ); // -117
console.log( calculateSine(360) ); // ~0