Computing zeroes (solutions) of a mathematical equation in JavaScript



We are required to write a JavaScript function that takes in three numbers (representing the coefficient of quadratic term, coefficient of linear term and the constant respectively in a quadratic quadratic).

And we are required to find the roots, (if they are real roots) otherwise we have to return false.

Example

The code for this will be −

const coeff = [1, 12, 3]; const findRoots = co => {    const [a, b, c] = co;    const discriminant = (b * b) - 4 * a * c;    // non real roots    if(discriminant < 0){       return false;    };    const d = Math.sqrt(discriminant);    const x1 = (d - b) / (2 * a);    const x2 = ((d + b) * -1) / (2 * a);    return [x1, x2]; }; console.log(findRoots(coeff));

Output

The output in the console −

[ -0.2554373534619714, -11.744562646538029 ]
Updated on: 2020-10-17T09:01:46+05:30

115 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements