binomial coefficient

New understanding of the binomial coefficient " b " of gas well

对气井二项式系数B的新认识

The Solutions of the High Step Binomial Coefficient Type Linear Differential Equation

高阶二项式系数型线性微分方程

Solution of the linear differential equation containing arrangement number and binomial coefficient

含排列数与二项式系数的线性微分方程

Euler Equation Based on Alternating Series Number Pattern of Binomial Coefficient and Arrangement Number

基于二项式系数与排列数的交错级数型欧拉方程

The spectrum character of binomial coefficient filtering

二项式系数滤波的谱特征

On the Some Proof Method of Binomial Coefficient Indentity

浅谈二项式系数恒等式的几种证明方法

Generalized Binomial Coefficient and Its Inversion

广义二项式系数及反演

Theoretically , the binomial coefficient B does not allow being negative value . But the abnormal situation ( B < 0 ) still occurs in practice without consideration of influence of bottom hole liquid loading , causing unable to make in-situ deliverability interpretation and evaluation .

从理论上说，二项式方程系数B不可能为负值，但在排除了文献中提及的井底积液影响的原因外，仍然出现异常情况（B小于零），致使现场无法进行产能解释和分析评价。

The main content of this thesis can be summarized as follows : 1 . Introduce relevant basic knowledge and concept about integer partition , such as Integer partition , Ferrer graph , Poset , Lattice , Combinatorial Proof , Binomial coefficient and so on .

介绍了一些与q-模拟有关的基本知识和基本概念，如：分拆，Ferrers图，偏序集，格，组合证明，二项式系数等。

A new method of computing the binomial deliverability coefficient of gas well

确定气井二项式产能系数的新方法

Combinatorial Proofs of a Kind of Binomial and q-binomial Coefficient Identities

一类二项式和q-二项式系数恒等式的组合证明

In the paper , on the basis of the binomial productivity general formula , the change law of the binomial coefficient " B " is theoretically derived in consideration of the investigation radius and its corresponding permeability change .

文章基于气井二项式产能方程通式，考虑探测半径及对应渗透率的变化，从理论上推导了二项式系数B的变化规律。