Use colon notation to rewite a linear system

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ssmith
ssmith 2021-11-17
评论： James Tursa 2021-11-17
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
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ssmith
ssmith 2021-11-17
@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
James Tursa 2021-11-17
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.

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