Firstly, we calculate the Lie point symmetry of 1+2-dimensional nonlinear evolution equation:Which arises from the motion of plane curves in affine geometry.

我們首先計算了來自射影幾何的平面曲線運動的非線性發(fā)展方程：所容許的李點對稱群三级黄免费视频网站。

Description and recognition of plane has been processed depend on the geometry model of continental group and affine group anciently, with the development of the computer vision application, people attaches importance to the investigation of the perspective invariants, thus the investigation of perspective invariants gradually become an important problem in the computer vision.

以往人們對曲線的描述和識別大都是在歐氏群和仿射群的幾何模型下進行的，近幾年隨著計算機視覺應用的發(fā)展，射影群下不變量的研究開始受到人們重視，所以射影變換下幾何不變性的研究是計算機視覺中的一個重要的研究課題不卡能看的黄色网站一区二区。

In this paper, multivariate Lagrange interpolation problems are systemically discussed,and through amending Cramer Strange Proposition and proving interpolation theory, the geometry construction of the properly posed sets of nodes along the plane algebraic curve is studied, at the same time, a number of practical constructing methods are given.

本文系統(tǒng)闡述了多元Lagrange插值問題，通過修正Cramer奇論并用插值法加以證明深夜在线网址在线观看网站大全，進一步對沿平面代數(shù)曲線插值唯一可解點組的幾何結(jié)構(gòu)進行深入的研究两人作爱视频在线看免费，同時得到了一些實用性較強的構(gòu)造方法。

On the basis of analytic geometry, the projection curve types of intersection lines of cone and cylikder, cone and cone on V plane is hyperbola and cone and sphere is parabola.

基于錐與圓柱久草久草视频、圓錐特级黄色视频毛片、圓球正貫時男人的视屏超碰女人帮，相貫線V 面投影為雙曲線和拋物線亚洲可以免费在线观看的黄色网址，且X 向極值點所在高度只與柱、錐軸線国产色妇女在线视频、球心距離錐頂高度和立錐錐頂角有關(guān)日韩特黄A片毛多片免费观看，而與它們的直徑無關(guān)，給出了求該極值點的作圖方法91精品国产综合久久小仙女。

This paper main discussion information technology and plane analytic geometry teaching conformity theory and practice.

本文主要探討信息技術(shù)與平面解析幾何教學的整合的理論及實踐亚洲Av人妻无码天堂。

Methods: A 3-D coordinate system was designed for skull, based on Frankfurt horizontal plane and analytical geometry method.

以顱骨的耳眼平面為基礎(chǔ)定位平面，按解析幾何方法設(shè)計顱骨的三維空間坐標系一级特黄AAAAA片免费观看。

According to the obtained characteristics of focal points and principal planes, using the expressions of focal point, focal plane, focal length, principal point, and principal plane of geodesic lenses, the geometry graphic imaging formation principles of geodesic lenses are developed to get the object-image-relation of geodesic lenses .

利用短程透鏡焦點欧美性爱自拍小视频、焦平面、焦距免费一级A片在线观看播放视频5生畜、主點人妻视频在线精品网站免费、主平面等的表達式，根據(jù)短程透鏡在大口徑范圍內(nèi)理想聚焦黄色免费强奸视频网站，主平面為以焦點為圓心,2021国产一级黄色视频、以焦距為半徑、在原點相切的兩個圓弧等性質(zhì)夜夜大片网，推導出了短程透鏡物像關(guān)系的作圖法求取原則AV三级在线观看网址。

Then the propagation of an arbitrary nonideal optical beam is analyzed. In terms of the moment theorem, the performance of modes of BOR is analyzed from both points of view of geometry optics and diffractive optics. Comparing BOR with the resonators using plane mirror and spherical mirror or using plane mirror and aspherical mirror by finite element method, the design procedure for BOR is gave.

然后以衍射的角譜理論為基礎(chǔ)，用矩量定理討論了任意光束的傳播規(guī)律欧美国精品亚洲精品日韩专区，從幾何光學和衍射光學的角度完整地分析了二元光學諧振腔的模式特征欧美性性享受在线，用有限元方法數(shù)值對二元光學諧振腔、非球面腔和球面腔進行衍射分析，比較了三種腔型的差異免费一级A片毛毛片在线播放一区，給出了二元光學諧振腔的設(shè)計方法尹人香蕉免费一级毛片。

Thus, along with that the geometry of a particle is closer to a plane gradually the freezing temperature will approach to the temperature of water nucleation on a plane until two temperatures join up.

于是， 隨著粒子的幾何形態(tài)接近于平面呦精品www在线播放，結(jié)冰溫度也將接近于水分在平面上的結(jié)冰行為国产综合久久久久，直到二者相銜接。

The line that passes through the center of the Earth linking the perigee and apogee, known as the line of apsides, itself rotates in the orbital plane at a speed that depends on the geometry of the elliptical orbit and the inclination of the orbital plane to the equator.

經(jīng)過地球中心欧美乱妇狂野欧美在线视频，連接近地點和遠地點的線稱為apside線超碰黄色1，衛(wèi)星在軌道平面上以某個速度旋轉(zhuǎn)，這個旋轉(zhuǎn)速度根據(jù)橢圓軌道以及軌道平面到赤道的傾角的幾何學來計算国产老人性交黄片。