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

Back to basics 21 - Matrix replicating

1747 Solvers
Whether the input is vector?

10186 Solvers
Find out missing number from a vector of 9 elements

309 Solvers
Maximum value in a matrix

16827 Solvers
Vectors counting by 2

522 Solvers

More from this Author8

Nth root

133 Solvers
Roots of a quadratic equation.

70 Solvers
kmph to mph converter

180 Solvers
Linear system of equations

432 Solvers
Energy of an object

431 Solvers

Problem Tags

Community Treasure Hunt

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

Start Hunting!