Problem 546. Is A the inverse of B?

Created by Bruce Raine
Appears in 2 groups

Difficulty:Rate

Solve Later
Add To GroupÃ‚

Given a matrix A and a matrix B, is A the inverse of B?
>>A=[2,4;3,5];
>>B=[-2.5,2;1.5,-1];
>>isInverse(A,B)
ans = 1

Solve

Solution Stats

7710 Solutions
1030 Solvers

Last Solution submitted on Mar 12, 2025

Last 200 Solutions

Problem Comments

12 Comments

12 Comments

Show 9 older comments

Andrew Cheyne on 18 May 2023

make sure to round the inverse of B, it's the reason 1&2 test cases are incorrect.

SAYALI MORE on 15 Oct 2023

i tried all the things but I am not able to solve this question can anybody help me with this question

Christian Schröder on 15 Oct 2023

@Sayali Recall that if A is the inverse B, then AB = BA = I, where I is an identity matrix of appropriate dimensions. Also, brush up on your basic MATLAB, e.g. syntax and built-in functions. Good luck!

Solution Comments

Show comments

Problem Recent Solvers1030

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 546. Is A the inverse of B?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1030

Suggested Problems

More from this Author16

Problem Tags

Community Treasure Hunt

Problem 546. Is A the inverse of B?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1030

Suggested Problems

More from this Author16

Problem Tags

Community Treasure Hunt

Players