Linear Algebra 9i: Gaussian Elimination Example 1

[tgibsonchs]

Where can I get a copy of the matrix program used in ths demo.

[terryphi]

so, the original matrix has five columns, and the general solution has one particular solution and three null space solutions for a total of four columns in the "solution matrix". i thought that the number of columns in the general solution was supposed to be the same as the number of columns in the original matrix.

is this rank nullify theorem?

[redberries]

Someone remind me why we use a multiple of 1 of the matrix zeros in the null space? Why not use a 0 multiple?