Question 1: What is the difference between "quick calculation" and "analysis" in the calculation method of production system? When the technical matrix is singular, "Quick Calculation" shows zero results, while "Analyze" shows non-zero but also incomprehensible results.

Question 2: In computing, what is the connection between the technology matrix, the intervention matrix and the "process"? In other words, how are the technology matrices and intervention matrices written?

I am very interested in the matrix method used for the calculation, can you provide some help?