To determine or ascertain by mathematical methods; compute.
An electronic or mechanical device for the performance of mathematical computations.
The branch of mathematics that deals with limits and rates of change, includs differential calculus, integral calculus.
A table or series of pages showing the months, weeks, and days in at least one specific year.
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.
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.
An official enumeration of the population, with details as to age, sex, occupation, etc.
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.
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.
A unit of length equal to one hundredth (1/100) of a meter.
The centre of mass of an object of uniform density, esp of a geometric figure.
A period of 100 years.
A line segment that joins two points on a curve.
x2 + y2 = r2
(x – a)2 + (y – b)2 = r2
The center of a circumcircle where perpendicular bisectors of the sides of a polygon inscribed in the circle intersect.
A circle that passes through all the vertices of a polygon.
The length of a closed geometric curve, esp of a circle. The circumference of a circle is equal to the diameter multiplied by π.
The radius of a circle that is circumscribed about a polygon.
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.
To arrange or organize according to class or category.
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.
A group of the same or similar elements gathered or occurring closely together.
The set of values that a function is allowed to take.
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).
Matching point for point, occupying the same place or position.
Lying on or passing through a single straight line.
- 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
- 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: nCr
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 points 罗经（方位）点
complementary angle 余角
complex number 复数
composite number 合数
compound interest 复利
concentric circles 同心圆
Having the same size and shape.
conic section 圆锥曲线
consecutive interior angles 连续内角
consecutive numbers 相邻数
continuous data 连续数据
converging lines 汇聚线
converging sequence 收敛序列
coordinate plane 坐标平面
corresponding angles 对应角
counting number 自然数
cross multiply 交叉相乘
cross section 截面
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
cumulative frequency 累积频数
curved line 曲线