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What is the matlab code for determining 3x3 matrix using sarrus method?

Virat
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1 Answers1

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You've got your matrix A. Then:

A(1,1)*A(2,2)*A(3,3) + A(1,2)*A(2,3)*A(3,1) + A(1,3)*A(2,1)*A(3,2) - A(3,1)*A(2,2)*A(1,3) - A(3,2)*A(2,3)*A(1,1) - A(3,3)*A(2,1)*A(1,2)

is the code to find the determinant of a $3$x$3$ matrix using Sarrus' rule.

Note: I recommend that you do some research before asking a question on this site, because this particular question could be easily solved by reading the Matlab documentation.

F.A.
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  • I am not sure the OP is simply asking this. IMHO he asks for solving a linear system of 3 equations with 3 unknowns $AX=B$. Waiting for his/her comments... – Jean Marie Apr 14 '18 at 15:52
  • Now that you say it, I'm not sure either @JeanMarie . I'll edit or delete the answer altogether depending on what OP says. – F.A. Apr 14 '18 at 16:05