Cody

Problem 42988. Linear system of equations

Solution 2059870

Submitted on 16 Dec 2019 by Asif Newaz
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Test Suite

Test Status Code Input and Output
1   Pass
A=[1 1 1;2 4 8;3 9 27]; b=[1;2;3]; y_correct = [1;0;0]; tol = 1e-14; assert(norm(lin_eqns(A,b)-y_correct) < tol)

y = 1.0000 0.0000 -0.0000
2   Pass
A=[2 1 -2;1 -1 -1;1 1 3]; b=[3;0;12]; y_correct = [3.5;1;2.5]; tol = 1e-14; assert(norm(lin_eqns(A,b)-y_correct) < tol)

y = 3.5000 1.0000 2.5000
3   Pass
A=[1 0 0;0 1 0;0 0 1]; b=[1e6;1e7;1e8]; y_correct = [1e6;1e7;1e8]; tol = 1e-9; assert(norm(lin_eqns(A,b)-y_correct) < tol)

y = 1000000 10000000 100000000
4   Pass
A=[1 0 1;0 -3 1;2 1 3]; b=[6;7;15]; y_correct = [2;-1;4]; tol = 1e-14; assert(norm(lin_eqns(A,b)-y_correct) < tol)

y = 2 -1 4

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