Tuesday, November 27, 2007

Linear Algebra.Section2.Linear Equations: two inerpretations

It has been so long since I have last seen vectors!!!! That is with the exception of the gradient vector. The most difficult idea was the matrix notation. I understand that an m*n matrix represents m rows and n columns, but i don't see how the Ax=b notation is logical. Otherwise Section 1 did a great job of explaining how vectors can be manipulated to show dilations, contractions, and multipliers.

I think matrixes would be useful because it allows you to solve multiple equations by calculating multiple systems simultaneously. Efficient calculations are appreciated in many places of business!

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