Commit418ac6b

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make exponentialFunction iterative using a for loop

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Lines changed: 8 additions & 7 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,22 +1,23 @@`
`1`		`-letpowerOfX=1`
`2`		`-letfactorial=1`
	`1`	`+import{calcFactorial}from'./Factorial.js'`
	`2`	`+`
`3`	`3`	`/**`
`4`	`4`	`*@function exponentialFunction`
`5`	`5`	`*@description Calculates the n+1 th order Taylor series approximation of exponential function e^x given n`
`6`	`6`	`*@param {Integer} power`
`7`	`7`	`*@param {Integer} order - 1`
`8`		`- *@returns exponentialFunction(2,20) = 7.389056098930604`
	`8`	`+ *@returns exponentialFunction(2,20) = 7.3890560989301735`
`9`	`9`	`*@url https://en.wikipedia.org/wiki/Exponential_function`
`10`	`10`	`*/`
`11`	`11`	`functionexponentialFunction(power,n){`
	`12`	`+letoutput=0`
`12`	`13`	`if(isNaN(power)\|\|isNaN(n)\|\|n<0){`
`13`	`14`	`thrownewTypeError('Invalid Input')`
`14`	`15`	`}`
`15`	`16`	`if(n===0){return1}`
`16`		`-constrecursion=exponentialFunction(power,n-1)`
`17`		`-powerOfX=powerOfX*power`
`18`		`-factorial=factorial*n`
`19`		`-returnrecursion+powerOfX/factorial`
	`17`	`+for(leti=0;i<n;i++){`
	`18`	`+output+=(power**i)/calcFactorial(i)`
	`19`	`+}`
	`20`	`+returnoutput`
`20`	`21`	`}`
`21`	`22`
`22`	`23`	`export{`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,6 @@ describe('Tests for exponential function', () => {`
`11`	`11`
`12`	`12`	`it('should return the exponential function of power of 5 and order of 21',()=>{`
`13`	`13`	`constex=exponentialFunction(5,20)`
`14`		`-expect(ex).toBe(148.4131470673818)`
	`14`	`+expect(ex).toBe(148.4131078683383)`
`15`	`15`	`})`
`16`	`16`	`})`

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