there is no result using inverse matrix

[nongnong]

the rank of my matrix(3*3) is 2. But there is no result after using inverse matrix vi, What's the problem?

[AdamB]

Hi nongong,

One of the main definitions of an invertable matris is that the rank needs to equal the number of colums and rows (in a n x n matrix).

so in your 3x3 matrix, for it to be invertable it needs to have a rank of three.

What do you hope to achieve in the long run?

AdamB

[AdamB]

Just something for you to look at.

http://en.wikipedia.org/wiki/Invertible_Matrix

AdamB

[nongnong]

Thanks! I have solved it.