GRE数学是我们的中国考生的拿手好戏，考试难度只有高中数学的难度，通常是考G同学们的满分冲刺对象。
但是！数学知识点简单，当他们用英语表达出来的时候，你还认识他们本来的模样吗？数学可以，单词不行的童鞋，戳中你的膝盖了吗？
小星为大家准备了数学专有名词的英文表达，快点收藏起来，学习吧！
数学符号 Mathematical symbols等于：equal to, thae same as, is不等：>more than<less than>= no less than<= no more than加：add, plus, more than, sum减：minus, subtract( to take away by or as if by deducting ), less than, difference乘：multiply, times, product(the number or expression resulting from the multiplication together of two or more numbers or expressions)除：divide, quotient(the number resulting from the division of one number by another)绝对值：absolute value平方：square立方：cube开平方：square root开立方：cube root平行：parallel to垂直：perpendicular to(a : standing at right angles to the plane of the horizon : exactly upright b : being at right angles to a given line or plane)
数字前缀1--uni, mono2--bi, du, di3--tri, ter4--tetra, quad5--penta, quint6--hex, sex7--sept, hapta8--oct9--enn10--dec, deka
方程和函数方程 equation一元二次方程 quadratic（involving terms of the second degree at most） equations多元一次方程组 simultaneous（satisfied by the same values of the variables） linear equations二元二次方程组 simultaneous quadratic equations解 solution, root, zero变量 variable常量（数） constant(something invariable or unchanging)项 term系数 coefficient(any of the factors of a product considered in relation to a specific factor especially : a constant factor of a term as distinguished from a variable)函数 function
数列和集合等差数列 arithmetic(a branch of mathematics that deals usually with the nonnegative real numbers including sometimes the transfinite cardinals and with the application of the operations of addition, subtraction, multiplication, and division to them) progression等比数列 geometric(a : of, relating to, or according to the methods or principles of geometry b : increasing in a geometric progression) progression集合 set子集 subset序列 sequence序列中的项 term包含序列的首末项 inclusive不包含序列的首末项 exclusive
排列组合与概率排列 permutation(a : the act or process of changing the lineal order of an ordered set of objects b : an ordered arrangement of a set of objects)组合 combination(an ordered sequence: as a : a sequence of letters or numbers chosen in setting a lock also : the mechanism operating or moved by the sequence b : a rapid sequence of punches in boxing c : any subset of a set considered without regard to order within the subset)概率 probability, possibility
数论 number theory数字 digit奇数 odd number偶数 even number整数 integer, whole number正整数 positive integer连续整数 consecutive(following one after the other in order) integer自然数 natural number非零数 nonzero正数 positive number负数 negative number有理数 rational(involving only multiplication, division, addition, and subtraction and only a finite number of times)无理数 irrational(a number that can be expressed as an infinite decimal with no set of consecutive digits repeating itself indefinitely and that cannot be expressed as the quotient of two integers)实数 real number加 addition合数 composite(made up of distinct parts) number质数 prime number因子 factor, divisor公因子 common factor质因数 prime factor公约数 common divisior最大公约数 the greatest common divisor GCD公倍数 common multiple最小公倍数 the least common multiple LCM乘 multiply乘数 multiplier几倍 timesA是B的两倍 twice as many A as BA是B的3/2倍 3/2 as many A as BA比B多20%，（A-B）/B=20%A is 20% more than B除以 divide除数 divisor商 quotient(the number resulting from the division of one number by another)余数 remainder整除 divisibility可整除的 divisible by， evenly divisible小数 decimals(numbered or proceeding by tens: a : based on the number 10 especially : expressed in or utilizing a decimal system especially with a decimal point b : subdivided into 10th or 100th units)小数点 decimal point分数 fractions(a numerical representation (as 3/4, 5/8, or 3.234) indicating the quotient of two numbers)循环小数 reccuring decimal有限小数 terminating decimal分子 numerator(the part of a fraction that is above the line and signifies the number to be divided by the denominator)分母 denominator(the part of a fraction that is below the line and that functions as the divisor of the numerator)真分数 proper faction假分数 improper fraction带分数 mixed number个位数 units' digit十位数 tens' digit百位数 hundreds' digit两位数 2-digit number十进制 decimalism, decimal notation, an integer in base 10 notation十分位 tenth, tenths' digit
单利、复利和价格单利 simple interest复利 compound interest成本 cost折扣 discount预付定金;分期付款 down payment(a part of the full price paid at the time of purchase or delivery with the balance to be paid later broadly : the first step in a process)利率 interst rate标价 list price差额 margin涨价 mark up降价 mark down毛利 markup( an amount added to the cost price to determine the selling price broadly)利润 profit购买价 purchasing price零售价 retail value销售价 sale price折旧 depreciation(to lower the price or estimated value of )
代数 algebra算术平均数 arithmetic mean几何平均数 geometric mean平均数 average中位数 median众数 mode期望 expectation偏差 deviation方差 variance标准差 standard deviation范围 range底数 base近似 closest approximation降低后的 reduced下降后的 decreased从...下降到... decrease...to...下降了 decrease by...增加后的 increased从...增加到... increase...to...增加了... increase by...定义 define表示，代表 denote(to serve as an indication of )不同的 distinct表达式 expression用...表达 in terms of最小值 minimum, least possible最大值 maximum人均 per capita(equally to each individual)指数 power正比于 proportional to比率 ratio倒数 reciprocal（either of a pair of numbers (as 2/3 and 3/2 or 9 and 1/9) whose product is one broadly）四舍五入到十分位 rounded(to express as a round number ― often used with off <11.3572 rounded off to two decimal places becomes 11.36>) to the nearest tenth连续的 successive, in a row平局 tie两个数字 two digits
几何 geometry坐标 coordinate(a : any of a set of numbers used in specifying the location of a point on a line, on a surface, or in space b : any one of a set of variables used in specifying the state of a substance or the motion of a particle or momentum)横坐标 abscissa(the horizontal coordinate of a point in a plane Cartesian coordinate system obtained by measuring parallel to the x-axis)纵坐标 ordinate(the Cartesian coordinate obtained by measuring parallel to the y-axis）解析几何 coordinate geometry斜率 slopey轴截距 y-intercept数轴 number lines象限 quadrant角度 degree锐角 acute(characterized by sharpness or severity ) angle直角 right angle钝角 obtuse(not pointed or acute ) angle顶角 vertex(vertices) angle平角 straight angle平分 bisect角平分线 angle bisector(e that bisects especially : a straight line that bisects an angle or a line segment)正北方 due(DIRECTLY, EXACTLY) north长度 length高度 altitude, height大小，维度 dimension( a (1) : measure in one direction specifically : one of three coordinates determining a position in space or four coordinates determining a position in space and time (2) : one of a group of properties whose number is necessary and sufficient to determine uniquely each element of a system of usually mathematical entities (as an aggregate of points in real or abstract space) <the surface of a sphere has two dimensions> also : a parameter or coordinate variable assigned to such a property <the three dimensions of momentum> (3) : the number of elements in a basis of a vector space b : the quality of spatial extension : MAGNITUDE, SIZE c : a lifelike or realistic quality d : the range over which or the degree to which something extends : SCOPE ― usually used in plural e : one of the elements or factors making up a complete personality or entity : ASPECT)周长 perimeter(a : the boundary of a closed plane figure b : the length of a perimeter )面积 area距离 distance直线 line线段 segment(the finite part of a line between two points in the line)中点 mid point相交 intersect(to meet and cross at a point )平行线 parallel lines垂直线 perpendicular(a : standing at right angles to the plane of the horizon : exactly upright b : being at right angles to a given line or plane) lines弧 arc(degree measurement on the circumference of a circle ― used especially in the phrase of arc <11 minutes 3 seconds of arc>)弧度（弧长/半径） radian(a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 57.3 degrees)中心 center圆 circle圆周长 circumference( the perimeter of a circle )半径 radius( a line segment extending from the center of a circle or sphere to the circumference or bounding surface )直径 diameter(the length of a straight line through the center of an object )内切 inscribe(to draw within a figure so as to touch in as many places as possible )外接 circumscribe(a : to draw a line around b : to surround by or as if by a boundary )切线 tangent(meeting a curve or surface in a single point if a sufficiently small interval is considered )顺时针 clockwise逆时针 counterclockwise（in a direction opposite to that in which the hands of a clock rotate as viewed from in front）同心圆 concentric (having a common center)circle对角线 diagonal( joining two vertices of a rectilinear figure that are nonadjacent or two vertices of a polyhedral figure that are not in the same face)三角形 triangle直角三角形 right triangle斜边 hypotenuse(the side of a right-angled triangle that is opposite the right angle)等腰三角形 isosceles(having two equal sides ) triangle等边三角形 equilateral( having all sides equal ) triangle三角形的中线 median of a triangle四边形 quadrilateral(a polygon of four sides)平行四边形 parallelogram(a quadrilateral with opposite sides parallel and equal)长方形 rectangle正方形 square梯形 trapezoid五边形 pentagon(a polygon of five angles and five sides)六边形 hexagon(a polygon of six angles and six sides)八边形 octagon(a polygon of eight angles and eight sides)十边形 decagon(a plane polygon of 10 angles and 10 sides)多边形 polygon正多边形 regular polygon全等的 congruent(congruous,being in agreement, harmony, or correspondence)面 face边 side平面 plane交叠 overlap(to extend over or past and cover a part of )正方体 cube长方体 rectangular solid圆柱 cylinder（the surface traced by a straight line moving parallel to a fixed straight line and intersecting a fixed planar closed curve ）圆锥 cone球 sphere表面积 surface area体积 volume
