It is well known matrix assembly process using two-graphs, or transformation graphs describing the circuit at all four stages of switching. The phases are marked as Even (with the letters E) and Odd (O) and the nodes are numbered to avoid confusion. This paper deals with assembling of the SC circuit matrix based on the status of switches. It is well known matrix assembly process using two-graphs or transformation graphs. However, the matrix can be built only on the basis of the status switches in the SC circuit.