How to use MUX to combine three vectors ?

I have 3 vectors A = [1 2 3], B = [4 5 6], C = [7 8 9]. I want to combine these three into one quantity 'u' . Such that u(1) = [1 2 3], u(2) = [4 5 6], u(3) = [ 7 8 9]. I need this because i want to give this three as input to 'interpreted MATLAB fcn'. But it accepts only one input. Is there a way for this using MUX ?

Answer 1

[Walter Roberson]

I suggest using vector concatenate

This will not give you u(1) as a 3 x 1 vector: you would need to access the rows or columns of u