Problem 43301. Calculate inverse matrix in m by n matrix

Created by Jang geun Choi

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x=(1:10)'
y=roundn(2*x+7*rand(size(x)),-1)

a*x=y

Estimate a using inverse matrix calculation. This is principle of linear regression.

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374 Solutions
47 Solvers

Last Solution submitted on Dec 27, 2019

Last 200 Solutions

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2 Comments

2 Comments

Matthew Eicholtz on 10 Oct 2016

As a friendly reminder, we can see the test suite, so it makes the problem more challenging if the solution is not explicitly in the test suite.

David Verrelli on 4 Jul 2018

The Test Suite needs to allow for floating-point errors in all test cases, as demonstrated in Solution 1575603. (Refer to Problem 44690.) Also, there should be at least four test cases for every problem.

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easy koaa linear algebra math poor_problem_statement poor_test_suite review simple

Problem 43301. Calculate inverse matrix in m by n matrix

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Last 200 Solutions

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Problem Recent Solvers47

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Problem 43301. Calculate inverse matrix in m by n matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers47

Suggested Problems

More from this Author27

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