【摘要】 针对现有频率计算软件中P-Ⅲ型频率曲线离均系数计算复杂和正态机率格纸绘制困难,本次充分利用Excel软件内置函数和强大图表功能完成了频率计算软件的制作,同时软件对正偏P-Ⅲ型频率曲线离均系数处理得以在负偏频率曲线中应用。软件操作简便,应用广泛,计算准确,制图美观,输出方便。更多还原

【Abstract】 In view of the complex in calculating with even coefficient in P-Ⅲ frequency curve and the difficult in planning with normal probability paper in existing frequency computation software,the function in Excel software sets and the formidable graph function are fully used to complete the development of the frequency computation software.Simultaneously,the software to process the even coefficient in copper bias P-Ⅲ frequency curve is applied in zinc bias frequency curve.The application of the software is simple,wide and accurate,and is artistic for charting and convenient for output.更多还原