Nipun Tharuksha nipunTharuksha
🏠
sedera-tax
/ quadraticEquation.php
Created
January 15, 2021 13:41
3. Quadratic Equation Implement the function findRoots to find the roots of the quadratic equation: ax2 + bx + c = 0. The function should return an array containing both roots in any order. If the equation has only one solution, the function should return that solution as both elements of the array. The equation will always have at least one sol…
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| /** | |
| * @return array An array of two elements containing roots in any order | |
| */ | |
| function findRoots($a, $b, $c) | |
| { | |
| $delta = ($b * $b) - 4 * ($a * $c); | |
| $x = (- $b - sqrt($delta)) / (2 * $a); | |
| $y = (- $b + sqrt($delta)) / (2 * $a); | |
| return [$x, $y]; |
OlderNewer