Problem 42986. Determine the roots of a cubic equation

Created by Abhishek Jain

Solve Later

Given the coefficients a, b, c, and d of a cubic equation, a*x^3 + b*x^2 + c*x + d = 0, determine its roots.

Solve

Solution Stats

223 Solutions
52 Solvers

Last Solution submitted on Oct 13, 2025

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Ivan on 16 Sep 2016

seriously?
>> assert(isequal(cubicRoots(x),y_correct))
cubicRoots(x)?

goc3 on 30 Sep 2016

This problem has been corrected and is now solvable.

Solution Comments

Show comments

Problem Recent Solvers52

Suggested Problems

Increment a number, given its digits

677 Solvers
Back to basics 11 - Max Integer

806 Solvers
Doubling elements in a vector

9992 Solvers
07 - Common functions and indexing 5

425 Solvers
Cumulative product of a vector

297 Solvers

More from this Author8

Create a constant offset.

106 Solvers
Linear system of equations

449 Solvers
kmph to mph converter

186 Solvers
Nth root

134 Solvers
Roots of a quadratic equation.

70 Solvers

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!