1 Then the process model of normal and inversive optimization is put forward, and moreover its macroscopical and microcosmic structures are investigated.

2 By using inversive congruential method, this paper researches the algorithm to generate pseudo-random numbers and the general principle for compound inversive congruential method.

3 Conclusion: Inversive U wave is a more useful and specific method in diagnosing cardiopathy compared with abnormal T wave.

4 This solution routine can be further improved to solve the inversive problems of engineering.

5 This paper makes research on CAD quadratic optimal track control in electro hydraulic force servo system by means of inversive deduction design.