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圆周率等于多少除以多少
更新时间: 2020-07-05 00:00:00  

圆周率是一个在数学及物理学中普遍存在的数学常数,也等于圆形之面积与半径平方之比。是精确计算圆周长、圆面积、球体积等几何形状的关键值。 它是一个无理数,即无限不循环小数。

在日常生活中,通常都用三点一四代表圆周率去进行近似计算。即使是工程师或物理学家要进行较精密的计算,充其量也只需取值至小数点后几百个位。

关键词: 圆周率 等于 多少 除以

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