Matlab script question

Take for example my script.m file has "A + B", and I have a .txt file that has two columns with x rows. I have assigned one of those columns as A, and another as B.

My question is how do I run the script.m file so that it uses those A and B values from the txt file? The only message I seem to get is that I have undefined variables for A and B, when I have already assigned them as such.

[Walter Roberson]

Duplicate is at http://www.mathworks.com/matlabcentral/answers/40800-matlab-script-question-quick

Answer 1

[oblivious]

first open that file and read data. use fopen, fscanf etc to read data