The discussion focuses on using MATLAB m-files for numerical integration, specifically applying the trapezium rule to find the area under the curve of g(x) = x^2 from x=0 to x=2. The area of a trapezium is defined as h/2(a+b). A user expresses difficulty in programming the m-file due to their inexperience with MATLAB. Another participant suggests using the "trapz" command, which is designed for numerical integration using the trapezoidal rule. The conversation emphasizes the importance of seeking help and utilizing available resources in MATLAB.