Use colon notation to rewite a linear system

Suppose A is an augmented matrix representation of a linear system.

 A = [-1, 2, -3; 4, -5, 6]

Rewrite as matrix equation Cx = D. Assign the matrices C and D in MATLAB using colon notation to define C and D using A

Find solution for x = C^(-1)*D

[James Tursa]

The left 2x2 part of A is C, and the right column of A is D. Do you know how to use colons to extract columns of a matrix? Have you looked at the onramp tutorials?

https://www.mathworks.com/learn/tutorials/matlab-onramp.html

[ssmith]

@James Tursa A is not a 2x2 matrix it is a 2x3 meaning there are no lefts and rights because what would happen to the middle numbers?

[James Tursa]

The A matrix is 2x3, but I assumed that the phrase "augmented matrix" meant that it contained both C and D in one matrix, C being the left 2x2 part of A and D being the right 2x1 column of A. I.e., C and D are stacked side-by-side to form A.