Problem 423. System of equations

Find a solution to a system of equations represented by a n by n+1 matrix. For instance,

 [ 2 0 4;   =>   2*x = 4 
   2 4 8 ]       2*x + 4*y = 8

Therefore, when given a=[2 0 4; 2 4 8] you should return a vector of solutions, v = [ 2 1 ]. Assume the system will always have a solution.

Solve

Last Solution submitted on Jan 16, 2026

Yvan Lengwiler on 4 Mar 2012

Consider using a small tolerance for the solution. My program coincides with your test cases up to 3e-16. That ought to be good enough, I think :)

James on 16 Jul 2012

My solution error was at 2.22e-16. Still not good enough, though.

Darina Bartova on 22 May 2022

it would be useful to say that you want solution in integer! (althougth I do not understand why)

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