【摘要】 模具的设计准则大多是以离散数据给出的，本文给出在模具ＣＡＤ系统中，使这些离散数据程序化和公式化的几种方法——用数组和数据文件处理法、函数插值法、最小二乘法的多项式拟合法和正交多项式拟合法，并给出了具体的实现过程。这些方法同样适用于其它ＣＡＤ系统更多还原

【Abstract】 The design rules in mould CAD system are in form of discretization data.A few of methods to make these discretization data programming and formulating are given.These methods include array and data file process,function interpolation,multinomial equating and orthogonal multinomial equating of least square method,and the implementation is given.They are also suitable for other CAD systems.更多还原