【AEAS数学类词汇精华帖】谁也不能阻止我称霸AEAS的数学!

AEAS专区-数学逻辑

【AEAS数学类词汇精华帖】谁也不能阻止我称霸AEAS的数学!

一般对于中国的考生来说,AEAS的数学部分都不在话下——当然,前提是你要看的懂题目!!!那么为了准备AEAS考试、甚至是将来顺利的进入了高中后想称霸数学,你需要知道哪些单词呢?动动手指先收藏了吧!

数学符号

Mathematical symbols

01
+

plus 加号;正号

“1+1”读作:one plus one
02

minus [‘maɪnəs]; negative [‘negətɪv]

减号;负号

“2-1”读作:two minus one

“-3”读作:minus three或negative three

“2-(-3)”读作:two minus negative three

03
±

plus-minus sign 正负号

“±1” 读作:plus or minus one
04
×

multiplied [’mʌltɪ’plaɪd] by ; times

乘号

“2×3” 读作:two multiplied by three 或 two times three
05
÷

divided by 除号

“4÷2”读作:four divided by two
06
=

equals; is equal to 等于号

“1+1=2”读作:One plus one equals two.

或 One plus one is equal to two.

07

is not equal to 不等于号

“a≠b”读作:a is not equal to b
08

congruent [‘kɒŋgrʊənt] to

全等(两个图形形状相同、大小相等)

“△ABC≌△DEF”读作:Triangle ABC is congruent to Triangle DEF.
09

approximately equal to 约等于号

“3×3≈10” 读作:Three multiplied by three is approximately equal to ten.
10
<

is less than 小于号

“1<2”读作 One is less than two.
11
>

is greater than 大于号

“2>1”读作:Two is greater than one.
12

is not less than 不小于号

“3≮2”读作:Three is not less than two.
13

is not greater than 不大于号

“2≯4” 读作:Two is not greater than four.
14

is less than or equal to 小于或等于号

“2≤3”读作:Two is less than or equal to three.
15

is greater than or equal to 大于或等于号

“5≥4”读作:Five is greater than or equal to four.
16
%

per cent 百分之……

“10%”读作:ten percent
17

per mill [mil]; per thousand千分之……

“10‰”读作:ten per thousand
18

infinity [ɪn’fɪnɪtɪ] 无限大号

“-∞” 读作:negative infinity
19

varies as 与…成比例

“X∝Y”读作:X varies as Y
20
√ ̄

square root 平方根

“√ ̄16=4”读作:The square root of sixteen is four.
21
3√ ̄

cube root 立方根

“3√ ̄27=3”读作:The cube root of 27 is 3.
22

since; because 因为

“∵1+1=2”读作:because one plus one equals two
23

hence; therefore 所以

“∴1<2”读作:hence one is less than two
24

angle 角

“∠A”读作:angle A

“∠A +∠B+∠C=180°”

读作:The measure of angle A plus angle B plus angle C equals 180 degrees.

25

semicircle [‘semɪsɜːkl] 半圆

“⌒AB”读作:semicircle AB
26

circle 圆

“⊙A”读作:circle A
27

circumference [sə’kʌmf(ə)r(ə)ns] 圆周

“○=π×d”读作:Pi multiplied by d equals circumference.
28
π

pi constant 圆周率

“π×d”读作:pi multiplied  by d
29

triangle 三角形

“△ABC”读作:triangle ABC

What is the area of triangle ABC? 求三角形ABC的面积

30

perpendicular to [,pɜːp(ə)n’dɪkjʊlə] 垂直于

“A⊥B”读作:A is perpendicular to B.
31
//

parallel [‘pærəlel] to 平行于

Line AB is parallel to line CD.

32

union of 并,合集

“A∪B”读作:the union of A and B
33

intersection [ɪntə’sekʃ(ə)n] of 交,通集

“A∩B”读作:The intersection of A and B
34

the integral [ˈɪntɪɡrəl] of ……的积分

“∫x”读作:the integral of x
35

summation of 总和

“∑x”读作:the summation of x
36
equation [ɪ’kweɪʒ(ə)n]

方程式、等式

“y = kx” 读作:

Y varies as x.

K is “the constant of variation.

y与x成正比(y是x的正比函数),k是常数。

“y = k/x”读作:

varies inversely as x.

y与x成反比例(y是x的反比例函数)。

表格版

1常见符号

plus ;positive
minus ;negative
× multiplied by ;times
÷ divided by
equals
approximately equals
not equal to
less than
greater than
equal to or less than
equal to or greater than o
(   ) round brackets ;parentheses
[   ] square brackets
{   } braces
is a member of the set
is a subset of
similar to
congruent to
* denotes an operation
therefore
because
ratio sign, divided by, is to
equals, as(proportion)
square root of
3√ cube root of
parallel to
perpendicular to, at right angles with
angle
right angle
º degree
minute
second
circle
A⁀B arc AB
e the base of natural logarithms,approx.2.71828
x! factorial x, x(x-1)(x-2)—1
lognx log x to the base n
π pi
lnx log x to the base e(natural logarithm)
lgx log x to the base 10(common logarithm)
|x| the absolute value of x

2常见几何计算公式

平面图形的周长和面积:

Perimeter Area
Triangle 三边之和 (底×高)/2
Square 边长×4 边长的平方
Rectangle (长+宽)×2 长×宽
Parallelogram (长+宽)×2 底×高
Trapezoid 四边之和 (上底+下底)×高/2
Rhombus 边长×4 两条对角线之积的1/2
Circle 2πr=πd πr2

立体图形的表面积和体积

Volume Surface Area
Rectangular Prism 长×宽×高 2(长×宽+长×高+宽×高)
Cube 棱长的立方 6×棱长×棱长
Right Circular   Cylinder πr2h 2πr   h(侧)+ 2πr2(底)
*Sphere 4πr3/3 4πr2
Right Circular Cone πr2h/3 lr/2 (l为母线)
 

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