In order to overcome the shortcomings of poor extensibility of the graph-based algorithm, a spatial constraint Solving algorithm based on SAGA is studied.

The construction method of low frequent component in seisimic inversion;

A research is made into the geometric charactercstics and the construction method of B spline quadruplex parameter hyperreal entity.

In the paper,construction method of interpolation function of Cartesian coordinate on triangular thin-plate element is presented for the first time.

This essay makes a further research on the structure methods in mathematics,and it analyzes and summarizes different ways of structure methods quite systemically.

And we also give some structure methods about nonzero special solution to the variable coefficient homogeneous linear differential equation of the second order.

This paper defines perfect supplementary quaternary Array (PSQA) arid its constructing methods.

Last a whole set of means to perfect construction of window are suggested.

This paper put forward a unified construction of even order magic square

Three construction of auxiliary function on differential theorems of mean are given.