However, functions in C cannot have free variables; all variables must be known at compile time, which reduces the expressiveness of function pointers as an abstractive mechanism. 但是,C中的函数不能有自由变量(FV):所有变量在编译时必须是已知的,这就降低了函数指针作为一种抽象机制的表达能力。
The method of the parameter fitting based B-spline is investigated. And the method of the parameter fitting which has three free variables is proposed. 研究了B样条参数拟合方法,提出了三元B样条参数拟合方法。
After a proper selection of free variables the exergy function of a system can serve as a characteristic function, from which all other thermodynamic functions may be determined. 在恰当的选择了自由变量(FV)之后,体系的火用函数可以作为特征函数,由此可求出所有其它热力学函数。
The solution of linear programming problem with free variables 具有自由变量(FV)线性规划问题的求解
Contrasting with that the existential instantiation in some textbooks is used only for formulas without free variables, according to the condition we given, it may be also used for formulas with free variables and the ability to reason has increased. Freedom freedom; 与某些教科书中存在量词消去规则只能用于无自由变元的公式不同,按照本文给出的条件,存在量词消去规则也可以用于有自由变元的公式,因而增强了系统的推理能力。