The calculation matrix is the same size for any frequency, and the solving approaches to PRT mainly used as follow: Levinson recursion algorithm, conjugate gradient algorithm, Cholesky decomposition approach and direct matrix inverse algorithm.

Levinson recursive algorithm is used,so the comp.

Forward recursion relation for layered geoelectric model;

A new method for layer-by-layer downward recursion inversion;

Coefficient recursion relation for dipole fields in multilayer medium;

Vector recurrence method for place analysis of linkages;

Because of the difficulty of getting reliable data by classical method,a method to estimate landing precision and concentration by Bayesian method of dynamic recurrence was introduced,in consideration of the relativity of prior and posterior information.

Using a recurrence formula, the paper gives a degree reduction condition for a ( n +1)th Bézier curve to a n th Bézier curve.

A recursive algorithm of DFT and its application;

Through analyzing the characteristic of program design language,the author put forward a recursively descriptive algorithm which can automatic construct grammar by language L,and proved that this algorithm will end after limit operations.

Using recursive design thinking, according to Lyapunov function stability requirement, designing delamination Block Diagonal Control System, the analytic inverse solution of equation of the aerodynamic missile are given.