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Function solve doesn't work corrctly

Dear users, I have a problem with function solve.

I have a system and I want resolve it by formula Ax=b. I generate correctly A and b matrix, and I call function

solve(A,b,solution,DECOMP_LU);

the solution is completly wrong. I try resolve the system using matlab and the solution is different.

I ask you...why does the function "solve" not work?

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Function solve doesn't work corrctly

Dear users, I have a problem with function solve.

I have a system and I want resolve it by formula Ax=b. I generate correctly A and b matrix, and I call function

solve(A,b,solution,DECOMP_LU);

the solution is completly wrong. I try resolve the system using matlab and the solution is different.

I ask you...why does the function "solve" not work?