分公式
1.Based on the fourth-order difference formula of the second derivative term, a fourth-order finite difference method is developed for solving two-points boundary value problem.
2.In this paper, the Galerkin approach is used to solve the hyper singular integral equation associated with the double layer solution of the Neumann problem of Laplace equation, the variational formulation with hyper singular integral kernel is changed into a weak one with boundary rotation.
3.. +n k are introduced. i.e. differencial method, Bernoulli formula, combined equation.
4.This study of mercury injection curves from cores of extra low permeability reservoirs in Y and Z blocks in Ansai oilfield shows that the reservoirs are of singular and multiple fractal natures using fractal geometric formula with two parameters.
5.Barnsley et al. got a dimensional formula of recurrent Fi F in the condition that the connection matrix is irreducible.
6.Based on the information from the previous research work(1),a new method for as- signing the spindles for warp and weft was developed.
7.A General Formula for Calculating the Number of Isomers of Some Lower Chain Oxygen Organic Compounds
8.This article gives that several commonly rational functions are divided into the decompose summation of the partial fraction formulas and their proof.
9.CLOSED-FORM APPROXIMATION FOR THE 3-DIMENSIONAL ISING MODEL (Ⅳ) THE APPROXIMATE INTERPOLATION FORMULA FOR THE PARTITION FUNCTION
10.According to the characteristic of self-resemblance of fractual,the paper discusses the relationship between affine transformation and fractual graph and the application in the generation of graphs.
