Anyone know a good site that explains matrices, no solutions, infite, etc?

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Homework Help Overview

The discussion revolves around understanding matrices, specifically concepts related to performing operations with matrices, the significance of determinants, and the implications of matrix rank in relation to solutions of linear systems.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants are exploring the meaning of the expression Ax and discussing the implications of matrix rank and determinants. There are inquiries about resources for better understanding these concepts.

Discussion Status

Some participants have provided insights into the definitions of matrices and their components, while others are seeking additional resources and clarifications. The conversation is ongoing, with various aspects of matrix theory being examined.

Contextual Notes

There is mention of a specific image related to the problem, but details about its content are not provided. Participants express a desire for tutorials that avoid direct solutions, indicating a focus on conceptual understanding.

mr_coffee
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Hello everyone, Anyone know any good tutorials that can explain to me how i can perform the following:
http://img499.imageshack.us/img499/9744/lastscan1jb.jpg
I know the basic jist of it, like all 000's in a row means infite, and that's about it :eek:
 
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Start with the Ax part. What does Ax mean, can you describe?
 
mr_coffee said:
I know the basic jist of it, like all 000's in a row means infite, and that's about it :eek:
Can you find a link with the determinant of the coefficient matrix?
 
Well A is a matrix and x = <x,y,z> if its a 3x3; when b is the value of the matrix. TD, i found lots of homework problems but no solutions :(
 
Have you seen the concept 'rank'? If the rank of the coefficient matrix is equal to the rank of the augemented matrix, then the system Ax = B has solutions.

Link with the determinant: if det(A) = 0 and A is an n x n matrix, then rank(A) < n, or: A is a singular matrix. If det(A) =! 0, then A is a regular matrix and its rank is n.
 

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