玄数

calculator     计算器
An electronic or mechanical device for the performance of mathematical computations.

calculus     微积分
The branch of mathematics that deals with limits and rates of change, includs differential calculus, integral calculus.

calendar     日历
A table or series of pages showing the months, weeks, and days in at least one specific year.

capacity     容量
The maximum amount or number that can be received or contained; cubic contents; volume.

cardinal number, cardinality     基数
Any of the numbers that express amount, as 1, 57, 214, denoting quantity but not order in a set.

Cartesian coordinates     直角坐标系, 笛卡尔坐标
A system of representing points in space in terms of their distance from a given origin measured along a set of mutually perpendicular axes. Written (x,y,z) with reference to three axes.

Celsius     摄氏
Of or relating to a temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure.

census     人口调查
An official enumeration of the population, with details as to age, sex, occupation, etc.

cent     一分钱
A coin and unit of money worth 1% of the main unit of money in many countries, for example of the US dollar or of the euro.

center | centre     中心
The middle point, as the point within a circle or sphere equally distant from all points of the circumference or surface, or the point within a regular polygon equally distant from the vertices.

Centigrade     摄氏
Because of confusion over the prefix centi-, which originally meant 100 but developed the meaning 1/100, scientists agreed to stop using the term centigrade in 1948. They use the term Celsius instead.

centimeter     厘米
A unit of length equal to one hundredth (1/100) of a meter.

centroid     形心，质心
The centre of mass of an object of uniform density, esp of a geometric figure.

century     一百年
A period of 100 years.

chord     弦
A line segment that joins two points on a curve.

circle     圆
With center (a, b) and radius r is the locus of all points in the plane whose distance from the center is equal to r.

circumcenter     外心
The center of a circumcircle where perpendicular bisectors of the sides of a polygon inscribed in the circle intersect.

circumcircle     外接圆
A circle that passes through all the vertices of a polygon.

circumference     圆周
The length of a closed geometric curve, esp of a circle. The circumference of a circle is equal to the diameter multiplied by π.

circumradius     外接圆半径
The radius of a circle that is circumscribed about a polygon.

circumscribe     外接
To draw one geometric figure around another so that they touch at every corner of the enclosed figure without cutting across each other, so that the two are in contact but do not intersect.

classify    分类
To arrange or organize according to class or category.

clockwise     顺时针方向
In the same direction as the hands of a clock rotate.

closed curve     封闭曲线
A curve having no endpoints, such as a circle.

cluster     簇，丛
A group of the same or similar elements gathered or occurring closely together.

codomain     值域
The set of values that a function is allowed to take.

coefficient     系数
A number or symbol multiplied with a variable or an unknown quantity in an algebraic term, as 4 in the term 4x, or x in the term x(a + b).

cofactor 余子式
Equal to (-1)i+j times the minor (The determinant of the matrix obtained by deleting the i-th row and j-th column of the matrix).


 

coincident     重合
Matching point for point, occupying the same place or position.

collinear     共线
Lying on or passing through a single straight line.

column     柱；圆柱

• An upright post or pillar usually having a cylindrical shaft, a base, and a capital.
• A vertical array of numbers or mathematical terms.

column graph / column chart    柱状图

combination     组合

• An arrangement of the numbers, terms, etc, of a set into specified groups without regard to order in the group.
• A group formed in this way. The number of combinations of n objects taken r at a time is n!/[(n – r)!r!]. Symbol: _nC_r

commission     佣金
An amount of money that is paid to sb for selling goods and which increases with the amount of goods that are sold.

common denominator     公分母

common difference     公差

common factor     公因数

common fraction     简分数，普通分数

commutative law     交换律

compass     圆规；指南针

compass points     罗经（方位）点

complement     补充；补体

complementary angle     余角

complex number     复数

composite number     合数

compound interest     复利

computation     计算

computer     计算机，电脑

concave     凹

concentric circles     同心圆

cone     圆锥体

congruent     全等
Having the same size and shape.


 

 

conic section     圆锥曲线

conjugate     共轭

consecutive interior angles     连续内角

consecutive numbers     相邻数

constant     常数，恒量

construction     结构；构造

continuous data     连续数据

converge     汇集

converging lines     汇聚线

converging sequence     收敛序列

convex     凸

coordinate plane     坐标平面

coordinates     坐标

coplanar     共面

corresponding angles     对应角

cosecant     余割

cosine     余弦

cotangent     余切

counterclockwise     逆时针

counting number     自然数

credit     信用，贷款

cross multiply     交叉相乘

cross section     截面

cube     立方体

cube root     立方根

cubed number     立方数

cubic centimeter     立方厘米

cubic measure     立方单位制，体积量度单位

cubic meter     立方米

cuboid     长方体；长方体的

cumulative frequency     累积频数

curve     曲线；弧形；弯曲

curved line     曲线

cylinder     圆柱，柱面