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JavaScript - how to calculate root of any degree?

7 points
Created by:
Root-ssh
68600

Using JavaScript it is possible to calculate root of any degree in following way.

1. Math.pow method example

// ONLINE-RUNNER:browser;

function calculateRoot(value, degree) {
    return Math.pow(value, 1.0 / degree);
}

// Examples:

// degree = 2
console.log( calculateRoot(  9  , 2 ) ); //  3
console.log( calculateRoot(  4  , 2 ) ); //  2

console.log( calculateRoot(  2  , 2 ) ); //  1.4142135623730951
console.log( calculateRoot(  0.5, 2 ) ); //  0.7071067811865476
console.log( calculateRoot(  0  , 2 ) ); //  0
console.log( calculateRoot( -1  , 2 ) ); //  NaN

// degree = 3
console.log( calculateRoot(  8  , 3 ) ); // 2
console.log( calculateRoot(  27 , 3 ) ); // 3

console.log( calculateRoot(  2  , 3 ) ); // 1.2599210498948732
console.log( calculateRoot(  0.5, 3 ) ); // 0.7937005259840998
console.log( calculateRoot(  0  , 3 ) ); // 0 
console.log( calculateRoot( -1  , 3 ) ); // NaN

// float degree
console.log( calculateRoot(  25 ,  0.5   ) ); // 625
console.log( calculateRoot(  25 , -0.5   ) ); // 0.0015999999999999999
console.log( calculateRoot(  25 ,  0.005 ) ); // 3.872591914849318e+279

 

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