解析几何中的英文单词和短语

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1、解析几何中的英文单词和短语解析几何AnalyticGeometry第一章矢量与坐标Chapter1VectorsandCoordinates标量scalar矢量vector坐标coordinate空间space系统system代数algebra量quantity计算calculation力学mechanics物理学physics解solution概念concept长度length面积area体积volume唯一displacement大小magnitude方向direction线段linesegment又向线段

2、linesegment始点initialpoint终点terminalpoint模module等于equalto零zero平行四边形parallelogram邻边adjacentside折线brokenline法则rule共线collinear共面coplanar加法运算additiveoperation三角形triangle对角线diagonal平移translation交换律lawofcommutation结合律lawofassociation分配率lawofdistribution乘法multiplica

3、tion分解decomposition系数coefficient基底base等式equality三棱形triangularprism六面体hexahedron平分线bisector连线connectingline线性相关lineardependence线性无关linearindependence线性组合linearcombination标架frame直角rightangle仿射affine左旋/手标架left-handedframe右旋/手标架right-handedframe空间矢量spacevector笛卡

4、尔坐标系cartesiancoordinatesystem第一象限firstquadrant分母denominator分子molecular仿射坐标系affinecoordinatesystem坐标平面coordinateplane坐标轴coordinateaxis定点vertex重心barycenter中点medianpoint中线medianline射影projection射影矢量projectivevector射线ray垂直perpendicularity夹角includedangle余弦cosine方向

5、余弦directioncosine正弦sine反交换anti-commutative反矢量inversevector垂足pedal两倍two-fold混合积mixedproduct数性积/内积innerproduct绝对值absolutevalue单位矢量unitvector零矢量zerovector平方square平方和sumofsquares高height高线altitude距离distance分量component左手系left-handedsystem右手系right-handedsystem棱/边ed

6、ge正数positivenumber复数complexnumber符号symbol初等几何elementarygeometry四面体tetrahedron矢量积crossproduct三重向量基triplevectorproduct实数域realnumberfield克拉默法则Cramerrule拉格朗日恒等式Lagrangeidentity第一章轨迹与方程Chapter2LociandEquations轨迹locus方程equation平面plane实数realnumber对应correspondence曲线

7、curve曲面surface直线straightline充要条件（当且仅当）ifandonlyif图/图标graph圆circle半径radius公式formula原点origin圆心centerofcircle反比proportionbyinversion参数parameter区间interval对称的symmetric定点fixedpoint准方程quasi-equation一次方程linearequation法矢量normalvector重合coincidence交角intersectionangle交点

8、intersectionpoint坐标系coordinatesystem轴axis有向角directedangle旋轮线/摆线cycloid拱形arch尖点cusp切线tangentline切点/触点tangentpoint渐进切线asymptotictangent渐伸线/切展线involvent星形线asteroid初等函数elementaryfunction椭圆ellipse斜率s