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圆曲线主点计算程序张中才（四川南充水利电力建筑勘察设计研究院）本文将采用卡西欧ｆｘ—４．５ＫＰ计算器，进行渠道圆曲线三主点的测设计算，三主点在圆曲线上位置如下图所示。图中；切线长度Ｔ＝ＲｔｇＡ／２曲线长度外矢距半径Ｒ写入程序：Ａ：Ｅ：Ｆ：Ｒ＝Ｅ／（１...
The calculation of the main point of the circular curve Zhang Zhongcai This paper will use the Casio fx-4.5KP calculator, measuring the three main points of the circular curve of the channel calculation, the three main points in the circular curve on the position As shown below. In the figure; Tangential length T = RtgA / 2 Curve length External pitch Radius R Write procedure: A: E: F: R = E / (1 ...