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Added RadianToDegree.js and RadianToDegree.test.js in Maths directory
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Maths/RadianToDegree.js
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Maths/RadianToDegree.js
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/*
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* Radian : https://en.wikipedia.org/wiki/Radian
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* Degree : https://en.wikipedia.org/wiki/Degree_(angle)
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*
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* Angle in Degree = ( Angle in Radian ) x ( 180 / pi )
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*
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* Example :
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* Question : Convert pi / 2 degree to radian
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* So, Angle in Radian = pi / 2
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*
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* Solution :
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* Angle in Degree = ( pi / 2 ) x ( 180 / pi ) = 90
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*
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* So, pi / 2 radian is equal to 90 degree
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*/
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/**
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* @param {number} radian
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* @return {number}
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*/
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export const radianToDegree = (radian) => {
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return radian * (180 / Math.PI)
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}
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Maths/test/RadianToDegree.test.js
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Maths/test/RadianToDegree.test.js
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import { radianToDegree } from '../RadianToDegree'
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test('should convert radian to degree:', () => {
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const degreeEqual = radianToDegree(0)
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expect(degreeEqual).toBe(0)
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})
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test('should convert radian to degree:', () => {
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const degreeEqual = radianToDegree(Math.PI / 4)
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expect(degreeEqual).toBe(45)
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})
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test('should convert radian to degree:', () => {
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const degreeEqual = radianToDegree(Math.PI / 2)
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expect(degreeEqual).toBe(90)
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})
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test('should convert radian to degree:', () => {
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const degreeEqual = radianToDegree(Math.PI)
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expect(degreeEqual).toBe(180)
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})
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