﻿ ﻿﻿ English | 玄数

abscissa 横坐标
In plane Cartesian coordinates, the x-coordinate of a point: its position from the origin (y axis) measured parallel to the x-axis. bar chart / bar graph  条形图
A diagram that uses lines or narrow rectangles(= bars) of different heights (but equal widths) to show different amounts, so that they can be compared. congruent     全等
Having the same size and shape. decimal number system   十进制数字系统
A positional system of numeration that uses decimal digits and a base of ten. exponential function   指数函数
The function of the form like: y = ax. factoring   因式分解
The act or process of separating an equation, formula, cryptogram, etc., into its component parts.
24 = 2 * 3 * 4
ax + ay + bx + by = (a + b) (x + y)

geometric sequence 等比数列
A series of numbers in which each is multiplied by a fixed number to produce the next. Like:
1, 2, 4, 8, 16 … …
1, 0.1, 0.01, 0.001, 0.0001 … …

hyperbola     双曲线
A conic section formed by a point that moves in a plane so that the difference in its distance from two fixed points in the plane remains constant.
| M1F1 | – | M1F2 |  =  | M2F1 | – | M2F2 |  =  | M3F1 | – | M3F2 | =  …… = Constant number system   数制
Any system of naming or representing numbers, as the decimal system or the binary system.  ﻿