AEAS数学​考试中各类必知符号

来源: 互联网 时间:2020-10-23 09:50:55 浏览量: 976 作者: AEAS考试

  无论是参加什么考试,基础是我们必须重视起来的,AEAS考试也不例外,尤其是AEAS更是需要我们刻苦学习,为了帮助大家巩固基础,小编今天就为大家带来了AEAS数学考试中各类必知符号,一起来了解一下吧!

  数学符号

  +

  plus 加号;正号,“1+1”读作:one plus one

  -

  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

  ±

  plus-minus sign 正负号,“±1” 读作:plus or minus one

  ×

  multiplied [’mʌltɪ’plaɪd] by ; times,乘号,“2×3” 读作:two multiplied by three 或 two times three

  ÷

  divided by 除号,“4÷2”读作:four divided by two

  =

  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.

  ≠

  is not equal to 不等于号,“a≠b”读作:a is not equal to b

  ≌

  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.

  ≈

  approximately equal to 约等于号,“3×3≈10” 读作:Three multiplied by three is approximately equal to ten.

  <

  is less than 小于号,“1<2”读作 One is less than two.

  >

  is greater than 大于号,“2>1”读作:Two is greater than one.

  ≮

  is not less than 不小于号,“3≮2”读作:Three is not less than two.

  ≯

  is not greater than 不大于号,“2≯4” 读作:Two is not greater than four.

  ≤

  is less than or equal to 小于或等于号,“2≤3”读作:Two is less than or equal to three.

  ≥

  is greater than or equal to 大于或等于号,“5≥4”读作:Five is greater than or equal to four.

  %

  per cent 百分之……,“10%”读作:ten percent

  ‰

  per mill [mil]; per thousand千分之……,“10‰”读作:ten per thousand

  ∞

  infinity [ɪn'fɪnɪtɪ] 无限大号,“-∞” 读作:negative infinity

  ∝

  varies as 与...成比例,“X∝Y”读作:X varies as Y

  √ ̄

  square root 平方根,“√ ̄16=4”读作:The square root of sixteen is four.

  3√ ̄

  cube root 立方根,“3√ ̄27=3”读作:The cube root of 27 is 3.

  ∵

  since; because 因为,“∵1+1=2”读作:because one plus one equals two

  ∴

  hence; therefore 所以,“∴1<2”读作:hence one is less than two

  ∠

  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.

  ⌒

  semicircle ['semɪsɜːkl] 半圆,“⌒AB”读作:semicircle AB

  ⊙

  circle 圆,“⊙A”读作:circle A

  ○

  circumference [sə'kʌmf(ə)r(ə)ns] 圆周,“○=π×d”读作:Pi multiplied by d equals circumference.

  π

  pi constant 圆周率,“π×d”读作:pi multiplied by d

  △

  triangle 三角形,“△ABC”读作:triangle ABC,What is the area of triangle ABC? 求三角形ABC的面积。

  ⊥

  perpendicular to [,pɜːp(ə)n'dɪkjʊlə] 垂直于,“A⊥B”读作:A is perpendicular to B.

  //

  parallel ['pærəlel] to 平行于,Line AB is parallel to line CD.


AEAS数学考试中各类必知符号


  ∪

  union of 并,合集,“A∪B”读作:the union of A and B

  ∩

  intersection [ɪntə'sekʃ(ə)n] of 交,通集,“A∩B”读作:The intersection of A and B

  ∫

  the integral [ˈɪntɪɡrəl] of ……的积分,“∫x”读作:the integral of x

  ∑

  summation of 总和,“∑x”读作:the summation of x36,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:Y varies inversely as x.y与x成反比例(y是x的反比例函数)。

  有关分数和小数

  proper fraction真分数

  improper fraction假分数

  mixed number带分数

  tenths unit十分位

  vulgar fraction,common fraction普通分数

  simple fraction简分数

  complex fraction繁分数

  numerator分子

  denominator分母

  (least)common denominator(最小)公分母

  quarter四分之一

  decimal fraction纯小数

  infinite decimal无穷小数

  recurring decimal循环小数

  基本数学概念

  arithmetic mean算术平均值

  weighted average加权平均值

  geometric mean几何平均数

  exponent指数,幂

  base乘幂的底数,底边

  cube立方数,立方体

  square root平方根

  cube root立方根

  common logarithm常用对数

  digit数字

  constant常数

  variable变量

  inverse function反函数

  complementary function余函数

  linear一次的,线性的

  factorization因式分解

  absolute value绝对值,e.g.|-32|=32

  round off四舍五入

  有关数论

  natural number自然数

  positive number正数

  negative number负数

  odd integer, odd number奇数

  even integer, even number偶数

  integer, whole number整数

  positive whole number正整数

  negative whole number负整数

  consecutive number连续整数

  real number, rational number实数,有理数

  irrational(number)无理数

  inverse倒数

  composite number合数e.g.4,6,8,9,10,12,14,15……

  prime number质数e.g.2,3,5,7,11,13,15……

  reciprocal倒数

  common divisor公约数

  multiple倍数

  (least)common multiple(最小)公倍数

  (prime)factor(质)因子

  common factor公因子

  ordinary scale, decimal scale十进制

  nonnegative非负的

  tens十位

  units个位

  mode众数

  median中数

  common ratio公比

  数列

  arithmetic progression(sequence)等差数列

  geometric progression(sequence)等比数列

  其它

  approximate近似

  (anti)clockwise(逆)顺时针方向

  cardinal基数

  ordinal序数

  direct proportion正比

  distinct不同的

  estimation估计,近似

  parentheses括号

  proportion比例

  unit单位,位

  permutation排列

  combination组合

  table表格

  trigonometric function三角函数

  以上就是AEAS数学考试必备符号的相关资讯,希望大家根据自身情况制定合理的复习计划,同时小编提醒大家,在备考中千万不能忽略语法和词汇的重要性!如果想要了解更多关于AEAS考试难度、AEAS考试报名的信息,可以在线咨询我们或添加客服微信kewo11!


AEAS数学​考试中各类必知符号
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