James Stewart《微积分》笔记· 8.2 Area of a Surface of Revolution(旋转体的表面积) JackLin Lūcem sequor.16 人赞同了该文章 旋转体的表面积 对于底面半径为 r ,高为 h 的圆柱(如图记8.2-1所示),其侧面的展开图形为矩形且面积为 A=2πrh . 图记8.2-1 圆柱及其侧面积 类似地,对于底面半径为 r ,...
Area of a Surface of Revolution 旋转曲面的面积 先看一下简单物体的面积: circular cylinder圆柱的侧面表面积: 可以直观得到: 而对应的circular cone圆锥: 我们可以得到对应的角弧度为: 最后,可以得到侧面积为: 而这样的图像: 我们可以知道是 大圆锥 - 小圆锥: 由相似可得: 最后化简得: 【圆锥可以理解为: 上...
第15B講 The First Fundamental Form and the Area of a Surface是【几何(一)】 宋琼珠 教授 - 台湾清华大学的第43集视频,该合集共计76集,视频收藏或关注UP主,及时了解更多相关视频内容。
This chapter discusses the problem of the analytical representation of a surface in space. One important type of such a representation is a parametric representation. The parametric representation of the surface uses of two parameters to define a surface; it was first introduced by Euler and was ...
题目 【题目】Write an expression for the area of a surfacewith equati mz=f(x,y),(x,y)∈D. 答案 【解析】A(S)=∫ ∫_D√(|f_x(x,y)|^2+|f_y(x,y)|^2+1),A相关推荐 1【题目】Write an expression for the area of a surfacewith equati mz=f(x,y),(x,y)∈D.反馈 收藏 ...
Noun1.surface area- the extent of a 2-dimensional surface enclosed within a boundary; "the area of a rectangle"; "it was about 500 square feet in area" expanse,area extent- the distance or area or volume over which something extends; "the vast extent of the desert"; "an orchard of ...
area of a curved surface 曲面面积相关短语 insulosity (即岛屿面积与总水面之比) 岛率 private area (室内外为每户保留的面积) 私用面积 wool fiber density (羊身单位面积内的羊毛根数) 羊毛纤维稠密度 chemocline (化跃面) 化跃层 sparrow pecked (砖面) 点状花纹 epirelief (层面) 上凸 herringbone dres...
The top half of the sphere is z=f(x,y)=√ (b^2-x^2-y^2) and D is given by \( (x,y)|x^2+y^2≤q a^2\) the surface area of the upper enclosed portion is\begin{split}A &=\iint_{D} \sqrt{1+\left(\dfrac{-x}{\sqrt{b^{2}-x^{2}-y^{2}}}\right)^{2}...
可数名词 You can use area to refer to a particular subject or topic, or to a particular part of a larger, more general situation or activity. 话题; 方面 ...the politically sensitive area of social security. …社保这个政治敏感话题。 6 有变体名词 The area of a surface such as a piece...
旋转体表面积的计算及球体表面积的推导(Surface Area of a Revolution and the Deduction of the Sphere) 关注00:00 / 22:50 自动 倍速 当前浏览器已限制自动播放 登录免费享高清画质 立即登录 1 人正在看 (全站<10人在看) , 0 条弹幕 请先登录或注册 弹幕礼仪 发送 1...