以 d 开头的数学词汇 | 玄数

2012-10-07
data   数据

  • The observations gathered from an expreiment, survey or observational study. Often the data are a randomly selected sample from an underlying population.
  • Statistics or other information represented in a form suitable for processing by computer.

date   日期
A particular month, day, and year at which some event happened or will happen.

decade   十年
A period of ten years, especially a continuous period, such as 1910~1919 or 2009~2018.

decagon   十边形
A polygon with ten sides and ten angles.

decahedron   十面体
A solid figure having ten plane faces.

decimal   十进制
A number written using the base 10.

12345 = 1×105 + 2×104 + 3×103 + 4×102 + 5×100

decimal fraction   十进制分数,小数
A fraction whose denominator is some power of 10, usually indicated by a dot (decimal point or point) written before the numerator: as 0.4 = 4/10; 0.126 = 126/1000.

decimal number system   十进制数字系统
A positional system of numeration that uses decimal digits and a base of ten.
number system

decimal point   小数点
A dot written in a decimal number, as in 8.6, to indicate the place where values change from positive to negative powers of 10.

decrease   减少

deduct   扣除

degree   度

denominator   分母

density   密度,浓度

dependent event   相关事件,相依事件

descending order   降序

determinant 行列式
The value computed from a square matrix of numbers by a rule of combining products of the matrixentries and that characterizes the solvablitity of simultaneous linear equations.
三阶行列式
n阶行列式

diagonal   对角线

diagram   图表

diameter   直径

diamond   钻石

dice   骰子

die   骰子

difference   差

difference of Squares   平方差

digit   数字

digital clock / digital watch   数字时钟

dilation   扩张

dimension   尺寸

directed number   有向数

direction   方向

discount   折扣

discrete data   离散数据

displacement   移位,替换;排水量

distance   距离

distributive law   分配律

divide   除,划分

dividend   被除数;股利

divisible   整除

division   除法

dodecagon   十二边形

dodecahedron   十二面体

dollar   美元

domain of a function   函数的定义域

double   两倍

dozen   十二,一打