SIMULINK toolbox which can simulate the linear or nonlinear, continuous or discrete, or both of the hybrid systems, nonlinear system of complex simulation of the effect becomes more apparent.

The article discusses advantages of EWB and analyzes EWB applied to Signal and Linearity System. At the same time, EWB has influenced upon teaching means greatly.

MATLAB is a powerful tool for analyzing and stimulating the linear system and has very strong ability for calculating and visualizing data.