Numerical Control (nc) is any machining process in which the operations are executed automatically in sequences as specified by the program that contains the information for the tool movements.

数字控制是按照含有机床(刀具)运动信息程序所指定的顺序自动执行操作的加工过程。

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Interpolation algorithm is the core technology in Numerical Control (NC), which has direct impact on the control accuracy, feed speed and machining capacity.

插补算法是数控系统的核心技术之一，插补算法的选择及算法特性直接影响到数控系统的控制精度、速度及加工能力等。

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Now the numerical control machines of small memory are still the mainstream in our country. The NC machines make the program of machining more concise, which is very important in practice.

目前，小内存的数控机床仍然是我国机床的主流，使加工程序变得简洁，对实际加工有着很重要的意义。

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