Matrices that represents the system of equations

[chenhang]

In the 2nd quiz we have this question

I am actually confused about this - do the matrices that represents the system of equations have to be like a “square form”, meaning they must have the same row and column numbers, representing the number of equations equals to the number of unknown variables?

Thanks!

[Sabeena_Kazi]

No, need not be sqaure matrix.

[jonrico]

Hi @chenhang.

Question 2 is referring to the equivalent matrix form of the system of equations in Question 1

and as @Sabeena_Kazi mentioned, it does not need to be a square matrix.