一、引言在实际问题的数学运算和数据处理过程中,首先要将计算对象的物理过程或工作状态归纳为数学模型。由于这种模型有时十分复杂,所以,还要作一些必要的简化,得出近似计算公式,然后再把这些近似公式编成计算机所能接受的计算程序,送入机内。计算机按预定程序进行运算,得出结果,并对其分析、处理、修正、筛选、描绘曲线,最后由输出设备输出。图1是它的工作流程 I. INTRODUCTION In the practical problems of mathematical operations and data processing, we must first calculate the object’s physical processes or working conditions into a mathematical model. Since this model is sometimes complicated, some simplifications are necessary to arrive at approximate formulas, which are then compiled into computational programs acceptable to the computer and fed into the machine. Computer according to a predetermined program to calculate the results, and its analysis, processing, correction, screening, depicting the curve, the final output by the output device. Figure 1 is its workflow