1. Language functions include informative function, interpersonal function, performative function, emotive function, phatic communion, recreational function and metalingual function. 语言功能包括：信息功能，人际功能，施为功能，感情功能，交感性谈话，娱乐性功能和元语言功能。
2. Language functions include informative function, interpersonal function, performative function, emotive function, phatic communion, recreational function and metalingual function. 语言功能包括：信息功能，人际功能，施为功能，感情功能，交感性谈话，娱乐性功能和元语言功能。
3. Strengthen programming function, figure function, man-machine dialogue function, diagnosing and communication function; 编程系统的功能、图形功能、人机对话功能及自诊断功能、通信功能加强；
4. Optimize this problem to the function, the character according to target function domain, can be scattering function optimization and continuation function optimization mark. 对于函数优化这个问题，根据目标函数定义域的性质，可以分为离散函数最优化和连续函数最优化。
5. The Optical Transfer Function( OTF) of a linear optical system can be derived from the Fourier Transfer of the Line Spread Function( LSF). 线性光学系统的传递函数（TF）由线扩散函数的傅立叶变换求出。
