1、Aabbreviation簡寫符號；簡寫absoluteerr絕對誤差absolutevalue絕對值accuracy準確度acuteangle銳角acuteangledtriangle銳角三角形add加addition加法additionfmula加法公式additionlaw加法定律additionlaw(ofprobability)（概率）加法定律additiveproperty可加性adjacentangle鄰角adjacent

2、side鄰邊algebra代數(shù)algebraic代數(shù)的algebraicequation代數(shù)方程algebraicexpression代數(shù)式algebraicfraction代數(shù)分式；代數(shù)分數(shù)式algebraicinequality代數(shù)不等式algebraicoperation代數(shù)運算alternateangle（交）錯角alternatesegment交錯弓形altitude高；高度；頂垂線；高線ambiguouscase兩義情況；二

3、義情況amount本利和；總數(shù)analysis分析；解析analyticgeometry解析幾何angle角angleatthecentre圓心角angleatthecircumference圓周角anglebetweenalineaplane直與平面的交角anglebetweentwoplanes兩平面的交角anglebisection角平分anglebisect角平分線；分角線angleinthealternatesegmen

4、t交錯弓形的圓周角angleinthesamesegment同弓形內(nèi)的圓周角angleofdepression俯角angleofelevation仰角angleofgreatestslope最大斜率的角angleofinclination傾斜角angleofintersection相交角；交角angleofrotation旋轉(zhuǎn)角angleofthesect扇形角anglesumofatriangle三角形內(nèi)角和anglesatapoin

5、t同頂角annum(X%perannum)年（年利率X%）anticlockwisedirection逆時針方向；返時針方向antilogarithm逆對數(shù)；反對數(shù)antisymmetric反對稱apex頂點approach接近；趨近approximatevalue近似值approximation近似；略計；逼近Arabicsystem阿刺伯數(shù)字系統(tǒng)arbitrary任意arbitraryconstant任意常數(shù)arc弧arclengt

6、h弧長arccosinefunction反余弦函數(shù)arcsinfunction反正弦函數(shù)arctangentfunction反正切函數(shù)area面積arithmetic算術(shù)arithmeticmean算術(shù)平均；等差中頂；算術(shù)中頂arithmeticprogression算術(shù)級數(shù)；等差級數(shù)arithmeticsequence等差序列arithmeticseries等差級數(shù)arm邊arrow前號endingder遞升序endingpowers

7、ofXX的升冪associativelaw結(jié)合律assumedmean假定平均數(shù)assumption假定；假設(shè)average平均；平均數(shù)；平均值averagespeed平均速率axiom公理axis軸axisofparabola拋物線的軸axisofsymmetry對稱軸commonfact公因子；公因子commonlogarithm常用對數(shù)commonmultiple公位數(shù)；公倍commonratio公比commontangetn公切

8、commutativelaw交換律comparable可比較的compass羅盤compassbearing羅盤方位角compasses圓規(guī)compassesconstruction圓規(guī)作圖complement余；補余complementaryangle余角complementaryevent互補事件complementaryprobability互補概率completingthesquare配方complexnumber復數(shù)comp

9、lexroot復數(shù)根compositenumber復合數(shù)；合成數(shù)compoundbart綜合棒形圖compounddiscount復折扣compoundinterest復利；復利息computation計算computer計算機；電子計算器concave凹concavedownward凹向下的Ddata數(shù)據(jù)decagon十邊形decay衰變decayfact衰變因子decimal小數(shù)decimalplace小數(shù)位decimalpoint

10、小數(shù)點decimalsystem十進制decrease遞減decreasingfunction遞減函數(shù)；下降函數(shù)decreasingsequence遞減序列；下降序列decreasingseries遞減級數(shù)；下降級數(shù)decrement減量deduce演繹deduction推論deductivereasoning演繹推理definite確定的；定的distance距離distancefmula距離公式distinctroots相異根dis

11、tincrsolution相異解distribution公布distrivutivelaw分配律divide除dividend(1)被除數(shù)；(2)股息divisible可整除division除法divisionalgithm除法算式divis除數(shù)；除式；因子divisofzero零因子dodecagon十二邊形dot點doubleroot二重根dueeastsouthwestnth向東南西北definiton定義degree(1)度；(

12、2)次degreeofapolynomial多項式的次數(shù)degreeofaccuracy準確度degreeofprecision精確度刪除；刪去denarynumber十進數(shù)denaryscale十進法denarysystem十進制denominat分母dependence(1)相關(guān)；(2)應變dependentevent(s)相關(guān)事件；相依事件；從屬事件dependentvariable應變量；應變數(shù)depreciation折舊des