what is the gaussian thingy of matrices and how is it used?

Question

anonymous · Answer

lgbasallote · Answer

i think so...it's the one with the $$\huge \left[\begin{array}{ccc} 1 & 0 & 0 \ 0 & 1 & 0 \ 0 & 0 & 1 \end{array} \right]$$

anonymous · Answer

this is used to reduce matrices in row echelon form or diagonal matrix using basic row -column operations which are used in turn for various purposed like solving linear system. http://en.wikipedia.org/wiki/Gaussian_elimination#Example

lgbasallote · Answer

O.O im not familiar with those terms so i dont think it's how we'll apply them

lgbasallote · Answer

is there a simpler use of it?

anonymous · Answer

solve 
x + 2y = 3
4x + 5y = 6
using this algoritm ... change it into
|dw:1341533240853:dw|

lgbasallote · Answer

this is cramer's right?

anonymous · Answer

|dw:1341533268828:dw|