cosine theorem

Recently,th e sine theorem and cosine theorem in the Euclidean plane E~2 were extended to the 3-dimensional Euclidean space E~3.

近期将欧氏平面E2上的正弦定理和余弦定理推广到三维欧氏空间E3中,建立了E3中四面体空间角正弦定理、二面角正弦定理和四面体余弦定理,利用向量给出了三维余弦定理和三维正弦定理的简单证明。

This article first elucidates the concept of the acreage outer normal vector on \%n\%dimensional singleentity and then establishes an outer normal vector identical equation of any \%n\% sides(\%n\%1 dimensonal singleentity) of \%n\%dimensional singleentity,from which the projection theorem and the cosine theorem of \%n\%dimensional singleentity can be educed.

首先给出n维单形面积外法向量的概念,然后建立任意n维单形n个侧面(n-1维单形)面积外法向量的一个恒等式,由此推出n维单形的射影定理和余弦定理。

Chapter 1 introduces the concept of multi-dimensional angle and some concepts related, gets a sine law in another way for a simplex and obtains a new way to prove the second cosine law and the Bartos sine law for a simplex.

第一章介绍单形的多维角与相关的概念，给出了单形一种形式的正弦定理，并给出了单形第二余弦定理和Bartos正弦定理的新证明。

Get using the theory and method of Grassmann algerbra get a new way of proving the first law of cosines in the n-dimensional Euclidean space and use it get a easy way of proving the law of sines in the n-dimensional Euclidean space.

利用Grassmann代数的理论与方法,给出了n维欧氏空间En中n维单形第二余弦定理一种简单的证明。

New Proving of the Law of Cosines and the Law of Sines in En

E~n中n维余弦定理和正弦定理的新证明

Axiomatic Definition of (Co)sine with Complex Variables;

复变量正余弦函数的公理化(等价)定义

Sine-cosine ROM

正余弦函数固定存贮器

Malus cosine-squared law

马吕斯余弦平方定律

The Importance of the Various Solutions to One Question-Supported by the Methods of the Addition Theorem of the Cosine Law;

用余弦的加法定理不同的证明来说明一题多解的重要性

The Tri chord Theorem and Ptolemy s Theorem are Equivalent to Each Other;

三弦定理和Ptolemy定理等价

The Theory of 2-D Cosinusoidal Phase-Modulated Repeater Scatter-Wave Jamming to SAR

SAR二维余弦调相转发散射波干扰原理

sine-cosine resolver

正弦－余弦解算装置

the Stability of the Supply Chain Research Based on the Vector Cosine Angle

基于向量夹角余弦的供应链稳定性研究

Fast logo insertion method based on DCT domain

基于离散余弦变换域处理的快速台标插入法

Returns the trigonometric cosine of the given angle (in radians) in the given expression

返回给定表达式中以弧度表示的给定角度的三角余弦

Returns the angle, in radians, whose cosine is the given float expression

返回以弧度表示的角度，其余弦为给定浮点表达式

On Calculation Formula of Sine Function and Cosine Function;

关于正弦函数和余弦函数的计算公式

Research on sine and cosine transform of broad sense Fourier

广义Fourier正弦、余弦变换研究

fast discrete cosine transform

快速离散余弦变换编码

There are two strings, with a four- or five-octave range.

张两弦，按四五度定弦。

Principle and Application of Digital Filter by Convolution Border Using Cosine Factor

采用余弦因子卷积镶边的数字滤波器原理及应用

Tth Maschke Theorem for Two-sided H-comodlue Coalgebras

双边H-余模余代数的Maschke定理