mathematic-basics/src/functions/quadraticEquationsFunctions.js

Basic Mathematic Functions.

function discriminant(a, b, c) {
    return b * b - ( 4*a*c )
}

function quadraticEquation(a, b, c) {
    var myDisc = discriminant(a,b,c)
    if(myDisc < 0) {
        return "This is not quadratic equantion."
    }
    if(myDisc === 0) {
        return -1 * b / 2*a
    }
    if(myDisc > 0) {
        return `${(-1 * b - Math.sqrt(discriminant(a, b, c))) / 2*a}, ${(-1 * b + Math.sqrt(discriminant(a, b, c))) / 2*a}`
    } else {
         return "This is not quadratic equantion."
    }
}

module.exports = { discriminant, quadraticEquation }