Problem 546. Is A the inverse of B?

Created by Bruce Raine

Difficulty:Rate

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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

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Last Solution submitted on Mar 25, 2025

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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!

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