A abbreviation 简写符号；简写absolute error 绝对误差absolute value 绝对值accuracy 准确度acute angle 锐角acute-angled triangle 锐角三角形add 加addition 加法addition formula 加法公式addition law 加法定律addition law(of probability)（概率)加法定律additive property 可加性adjacent angle 邻角adjacent side 邻边algebra 代数algebraic 代数的algebraic equation 代数方程algebraic expression 代数式algebraic fraction 代数分式；代数分数式algebraic inequality 代数不等式algebraic operation 代数运算alternate angle （交）错角alternate gment 交错弓形altitude 高；高度；顶垂线;高线ambiguous ca 两义情况；二义情况amount 本利和；总数analysis 分析；解析analytic geometry 解析几何angle 角angle at the centre 圆心角angle at the circumference 圆周角angle between a line and a plane 直 与平面的交角angle between two planes 两平面的交角angle biction 角平分angle bictor 角平分线 ；分角线 angle in the alternate gment 交错弓形的圆周角angle in the same gment 同弓形内的圆周角angle of depression 俯角angle of elevation 仰角angle of greatest slope 最大斜率的角angle of inclination 倾斜角angle of interction 相交角；交角angle of rotation 旋转角angle of the ctor 扇形角angle sum of a triangle 三角形内角和angles at a point 同顶角annum（X% per annum） 年(年利率X％）anti—clockwi direction 逆时针方向；返时针方
向anti-logarithm 逆对数；反对数anti—symmetric 反对称apex 顶点approach 接近;趋近approximate value 近似值approximation 近似；略计；逼近Arabic system 阿刺伯数字系统arbitrary 任意arbitrary constant 任意常数arc 弧arc length 弧长arc-cosine function 反余弦函数arc—sin function 反正弦函数arc-tangent function 反正切函数area 面积arithmetic 算术arithmetic mean 算术平均；等差中顶;算术中顶arithmetic progression 算术级数；等差级数arithmetic quence 等差序列arithmetic ries 等差级数arm 边arrow 前号ascending order 递升序ascending powers of X X 的升幂associative law 结合律assumed mean 假定平均数assumption 假定；假设average 平均；平均数；平均值average speed 平均速率axiom 公理axis 轴axis of parabola 拋物线的轴axis of symmetry 对称轴 Bback substitution 回代bar chart 棒形图;条线图；条形图；线条图ba （1)底；（2）基;基数ba angle 底角ba area 底面ba line 底线 ba number 底数；基数ba of logarithm 对数的底bearing 方位（角）;角方向(角）bell-shaped curve 钟形图bias 偏差;偏倚
billion 十亿binary number 二进数binary operation 二元运算binary scale 二进法binary system 二进制binomial 二项式binomial expression 二项式bict 平分;等分biction method 分半法；分半方法bictor 等分线 ；平分线 boundary condition 边界条件boundar
y line 界（线）;边界bounded 有界的bounded above 有上界的；上有界的bounded below 有下界的；下有界的bounded function 有界函数brace 大括号bracket 括号breadth 阔度broken line graph 折线图
C calculation 计算calculator 计算器；计算器cancel 消法；相消canellation law 消去律capacity 容量Cartesian coordinates 笛卡儿坐标Cartesian plane 笛卡儿平面category 类型；范畴central line 中线 central tendency 集中趋centre 中心;心centre of a circle 圆心centroid 形心；距心certain event 必然事件chance 机会change of ba 基的变换change of subject 主项变换change of variable 换元；变量的换chart 图;图表checking 验算chord 弦chord of contact 切点弦circle 圆circular 圆形；圆的circular function 圆函数；三角函数circular measure 弧度法circumcentre 外心；外接圆心circumcircle 外接圆circumference 圆周circumradius 外接圆半径circumscribed circle 外接圆class 区;组;类class boundary 组界class interval 组区间;组距class limit 组限；区限class mark 组中点；区中点classification 分类clnometer 测斜仪clockwi dirction 顺时针方向clod convex region 闭凸区域clod interval 闭区间coefficient 系数coincide 迭合；重合collection of terms 并项collinear 共线 collinear planes 共线面column (1）列；纵行;(2) 柱combination 组合comm
on chord 公弦common denominator 同分母；公分母common difference 公差common divisor 公约数；公约common factor 公因子；公因子common logarithm 常用对数common multiple 公位数；公倍common ratio 公比common tangetn 公切 commutative law 交换律comparable 可比较的compass 罗盘compass bearing 罗盘方位角compass 圆规compass construction 圆规作图complement 余；补余complementary angle 余角complementary event 互补事件complementary probability 互补概率completing the square 配方complex number 复数complex root 复数根composite number 复合数；合成数compound bar chart 综合棒形图compound discount 复折扣compound interest 复利;复利息computation 计算computer 计算机；电子计算器concave 凹concave downward 凹向下的
