quadrature of the circle

In this paper,we point out that there exists a logic problem to calculate the area of circular disc in many textbooks of calculus.

本文中我们首先指出在现行很多"析"和"高等数学"教材中出现的计算圆的面积存在逻辑循环的问题。

The circle has greater area than a regular poiygon of the same perimeter.

圆的面积比同样周长的正多边形的面积大。

We can compute the circular area with radius.

我们能用半径计算出圆的面积。

In this way the areas of the polygons thus formed gradually approach to the area of the circle, the difference diminshing step by step.

按这种方法，这样形成的多边形的面积逐渐趋近于圆的面积，两者的差别一步步地缩

How to Calculate the Area of Circle and Ratio of the Circumference of to Its Diameter;

圆面积公式与圆周率究竟是怎样推求的

Extremal properties on inscribed (circumscribed) polygons of a circle;

圆内接(外切)多边形面积的极值性质

Area Formula of the Polygon of Inscribed or Circumscribed Ellipse;

椭圆内接(外切)多边形的面积公式

Searching the differential of volume for body of rotation and the area for surface of revolution by using the frustum of cone

利用扁圆台求旋转体的体积元素与侧面积元素

Some Conclusions on the Sectional Area of the Cubic Circumscribed Cone of the Same Class;

正方体外接圆锥一类截面面积的几个结论

Information Fusion of Two Sections Based on the Area of a Vector Ellipse and its Application

基于矢椭圆面积的双截面信息融合及其应用

mohr land area moment circle

莫尔 兰德面积矩圆

The Baptistery is a stately rotunda, of huge dimensions, and was a costly structure.

浸礼堂，是个面积巨大的圆厅，也是座豪华的建筑。

This paper introduces Averaging arch area property of conic.

本文介绍圆锥曲线中平分弓形面积的一个性质.

A REIATIONSHIP BETWEEN THE WEAR LENGTH OF FIANK OF TOOL RADIUS EDGE AND THE WEAR VOLUME

圆弧刃刀具后面磨损长度与体积的关系

Analytical Solutions for Scattering of Rayleigh Waves by Alluvial Valleys;

圆弧形沉积场地对入射平面Rayleigh波的散射解析解

Application of Affine Nature in the Demand of Maximum Area of Inscribed Triangle Within the Ellipse

仿射性质求椭圆内接三角形的最大面积

Accurate Computation of the Area of Projected Surface Under Limitation of Circular Cold Shield with MATLAB

用MATLAB实现圆形冷屏限制下投影面积的准确计算

Analytical Model for Cross-Sectional Area of Workpiece in Round-Oval-Round Pass Sequence in Bar Rolling

棒材轧制圆-椭圆-圆孔型中轧件面积计算模型

On Approximate Development of Straight Grained Helicoids;

三角形等面积法在直纹圆柱螺旋曲面近似展开中的应用