how to add this formula in my minimization objective function?

GAMS
1

Hi, I am new here.
I don’t know how to add this formula in my minimization objective function.
image.png
where //x//_1 stands for the sum of the absolute values of the components of x. A and b are random given matrix.
Anyone can help me with this? Thanks in advance.

2

Hi
Take a look at this wikipedia entry and this Gams wiki entry.
Cheers
Renger