圆面积

LIU Hui's Cyclotomic Method is one of the greatest achievements in the history of mathematics in China,even in the world,in which the special approach to understand the infinity and the method to solve it are presented.

有的著作认为在极限公式limx→0sinxx=1的证明中，要用到圆的面积公式S=21Lr，而对后者的证明中必须要用到重要极限limx→0sinxx=1，从而犯了循环论证的错误。魏晋刘徽的"割圆术"是对无限问题的独特认识和致用的处理方式，是为证明圆面积公式而设计出来的一种方法。

Calculated area of circle, a numerical input, press the button will get a corresponding area of circle.

详细说明：计算圆面积，输入一个数值，按按钮就会得到相应的圆面积。

Vb6.0成功测试-A program used to calculate the area of a circle.

一个用vb实现的求圆面积的程序。

It is impossible to write a program without knowing algorithm. For example, to calculate the circumference and area of a circle, you should know the formulas "circumference＝2лr' and "area = 7лr2'.

不懂算法就不可能编写程序，例如，要计算圆的周长和面积，你要知道"圆周长＝27rr"和"圆面积＝，rr2"的公式。

The formula Πr is used to calculate the area of a circle.

pr 这个公式用於计算圆面积。

The method of area ratio,the area of a circle in sample plot to the whole area of the circle, in which the distributing point is the center and the scale distance is the radius,is defined as the weighted coefficient of edge correction in this paper.

将边缘效应的权重值定义为以分布点为圆心，尺度距离为半径作圆，圆在样地内的面积部分与整个圆面积之比。

Area and circularity act as two elements of the eigenvector for they can remarkably characterize the surface area of the bubbles.

由于分类的依据是气泡表面积的大小，确定了圆面积和圆形度两个最能表征类圆形表面积的分量组成分类特征向量。

In a circle,when an isogon unlimited number of margin increase, the limits of its perimeter is circumference, and its size limited is the area of the circle.

（《九章算术》方田章圆田术刘徽注）这就是说，圆内接正多边形的边数无限增加的时候，它的周长的极限是圆周长，它的面积的极限是圆面积。

Among them heart scope about the spherical surface inside that diameter is 10 kilometers of.

其中心范围大约直径10公里的圆面积内。

LIU Hui's Cyclotomic Method is one of the greatest achievements in the history of mathematics in China,even in the world,in which the special approach to understand the infinity and the method to solve it are presented.

有的著作认为在极限公式limx→0sinxx=1的证明中，要用到圆的面积公式S=21Lr，而对后者的证明中必须要用到重要极限limx→0sinxx=1，从而犯了循环论证的错误。魏晋刘徽的&割圆术&是对无限问题的独特认识和致用的处理方式，是为证明圆面积公式而设计出来的一种方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。