Problem 42988. Linear system of equations

Created by Abhishek Jain

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Solve the system of equations in three variables.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

162 Solutions
126 Solvers

Last Solution submitted on Sep 22, 2020

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

John D'Errico on 2 Oct 2016

The tests cases used an exact test for equality. In terms of floating point numbers, this is incorrect as a test, because it can fail to recognize entirely valid solutions, and there are many ways to validly solve this problem. As such, I modified the test cases to use a tolerance on the result.

Solution Comments

Solution 976222

2 Comments

2 Comments

Neha Singh on 20 Sep 2016

inv(A)*b solution not working for test case 1.. Am I wrong with this?

Peng Liu on 20 Sep 2016

It's the floating-point precision that matters.

Problem Recent Solvers126

Problem Tags

equations

Problem 42988. Linear system of equations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers126

Suggested Problems

More from this Author9

Problem Tags

Problem 42988. Linear system of equations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers126

Suggested Problems

More from this Author9

Problem Tags

Players