首先,买一本至少有100页横格纸的笔记本。
当然,贝拉德要求助于电脑,不过你也可以用最简单的办法在自家客厅计算圆周率,所用材料只是几根针和一张横格纸。
He used a computer, but you can also calculate pi at home with some needles and a sheet of lined paper.
采用正态分布积分曲线的近似公式计算概率格纸的坐标,并在屏幕绘图。
Coordinates of a normal probability paper are calculated with a approximate formula of normal distribution integral curve and drawn on screen.
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