常用数学符号、公式和等式的读法
常用数学符号、公式和等式的读法
　　+ 加号,加 plus
　　+ 正号 positive
　　- 减号,减 minus
　　- 负号,负 negetive
　　± 加或减 plus or minus
　　± 正或负 plus or minus
　　· 乘 multiplied by times into
　　& 除 divided by
　　: 比 proportional to
　　= 等号 equal sign
　　= 等于 to equal,to equals
　　& 大于 greater than
　　& 小于 less than
　　≥ 大于等于 greater than or equal
　　≤ 小于等于less than or equal
　　≡ 恒等于 identical with
　　≈ 约等于 approximately equal
　　≌ 全等于 congruent
　　～ 等价于
　　相似于 similar to
　　→ 趋近于 approaches
　　( ) 括号,括弧 1) 　　sign
　　parenthesis
　　圆括号,圆括弧 2) round brackets
　　[ ] 方括号1) squre [angular] 　　brackets
　　括号2) brackets
　　{ } 花括号 braces
　　∑ 求和sigma
　　 从　　1到n的和 the sum fsigma
　　 从1到n的积 the product form i 　　equalsone to n
　　x1 +x2+x3+ΛΛ x one x two plus x three,etc(et
　　a=b 1) a equals to b
　　2) a is equal to b
　　3) a is b
　　a≠ba is not b
　　a&b a is greater than b
　　a& td&
　　a≥b a is greater than or equal to b
　　a≤b a is less than or equal to b
　　a≈b a approximately equal (s) b
　　a∝b a a is (directly)
proportional to b
　　a∈A a is member of set A
　　A&B 　　A is contained in B;A is a 　　proper subset
　　AIB A intersection B
　　AYB A union
　　{ }或φ empty set
　　&rA 　　implies
　　&hA 　　is equivalent to　xRy x is in the relation R
　　a±b a plus or minus b
　　(a+b)(a-b) a plus b,a minus b
　　(a+b)2 a plus b all squared
　　(a&b)2 a over b all squared
　　n!factorial n
　　a% a persent
　　|a|modulus a
　　x→∞ x approaches infinity
　　0& x &&
　　0≤x≤a zero is less than or 　　equal to x is less
than or equal to a
　　c=a.b 1)c equals (is equal to) a 　　multiplied by
　　　2) c equals a times b
　　1:2 the ratio of one to two
　　1/2one half
　　1/3one third
　　1/100 a[one] hundredth
　　1/1000 a[one] thousandth
　　0.1(.1)nought point one
　　0.01(.01)nought point nought
　　3.1416 three point one four one six
　　14. one four point one four,one four recurring
　　a:b the ratio of a to b
　　a:b=c 1) a devided by b equals c
　　　2) a devided by b is c
　　　3)the ratio of a to b is c
　　a:b=c:d 1) the ratio of a to b equals the ratio
　　　　2) a is to b as c is to d
　　a+b&c a plus b is greater then
　　a+b=c a plus b is (is equal to) c
　　a-b=c a minus b(b from a) is(is equal
　　(a,b) a& td the open in terval
　　[a,b]a≤x≤b the closed interval from a to b
　　(a,b) the interval a&
　　[a,b] the interval a≤x
　　a& td x then&
　　a≤x≤b a is less then or equal to x is less then
or equal to b
　　logax logarithm (base) of x
　　lnx natural logarithm of x
　　x2 1)x squured
　　2) x to the second power
　　3) x raised to the second power
　　4) the square of x
　　5) the second power of x
　　6) x to the second
　　x3 1)x cubed
　　2) x to the third power
　　3) x raised to the third power
　　4) the cube of x
　　5) the third power of x
　　6) x to the third
　　xn 1)x to the n-th power
　　2) x raised to the n-th power
　　3) the n-th power of x
　　4) x to the n-th
　　x-n 1) x to the minus n-th
　　2) x to the minus n-th power
　　 radical
　　=b 1) the square root of a is(equals) b
　　2) the square root out of a is(equals) b
　　 the square root of a
　　 the cube root of a
　　 the cube root
　　 the n-th root
　　a& a prime
　　an 1) a second prime
　　2) a double prime
　　am 1) a triple prime
　　2) a third prime
　　a1 1) a sub one
　　2) a first
　　a2 1) a sub two
　　2) a second
　　am 1) a sub m
　　2) a m-th
　　a'm 1) a prime,sub m
　　2) a sub m,prime
　　a'1 a first prime
　　an2 a second, second
　　y first derivative of y
　　 second derivative of y
　　dy/dx first derivative of y with respect to
　　d2y/dx2 second derivative of y with respect to
　　y=f(x) y is a function of x
　　∫ integral of
　　 1) integral of……from a to b
　　2) integral of……between limits a and b
　　 capital L equals the square root of (out of ) capital
　　plus minus x square
　　 a to the m by n-th power equals the n-th root of (out
　　the m-th power
　　P=∞ p is equal to infinity
　　∠ angle
　　&is perpendicular to
　　∥is parallel to
　　△ABC triangje ABC
　　 vector F
　　 a bar
　　≌ is congruent to
　　～ is similar t
　　A-1 inverse of matrix A　% percent
二、英语缩写词
absolutely
Anno Domini
ad infinitum
总数、共计
above-mentioned
arithmetic mean
答案、解答、回答
and-or-inverter
arithmetic progression
application
approximate
近似、约计
自变数,幅角
arithmetic
Before Christ
Binary Coded Decimal
二进制编码的十进制
Binary Coded Octal
二进制编码的八进制
℃(c)
centigrate
厘,百分之一
Computer-Aided Design
计算机辅助设计
Computer-Aided Instruction
计算机辅助教学
calculated
catalog (ue)
目录,一览表
Counter-Clockwise
逆时针方向
centre distance
参看、见、比较
center of gravity
Centimetre Gramme Second
厘米·克·秒(单位)制
circumference
center-line
center line average method
算术平均法,平均高度法
centimetre
coefficient
行,纵行,栏,项目,柱
conclusion
conic sections
construction
cont (contd)
Contracted
Contraction
center (s)
顺时针方向
digital computer
数字计算机
differential equation
def(def’n)
definition
demonstrative
derivative
详细,细节,详图
decimal fraction
(十进)小数
difference
同上,同前,如前所述
加倍,二倍,成双的,成倍的
data processing
error expected
允许的误差
exempli gratia=for example
eq (eq’n)
especially
et sequentia
及以下等等
example(s)
固定的,不变的
general average
greatest common divisor
最大公约数
greatest common factor
最大公因子
greatest common measure
最大公约数
geometrical progression
等比数列,几何数列
highest common factor
最高公因式,最大公约数
horizontal
hypothesis
在同处(书,文献等出处)
同前,同上,同作者,同样
id est=that is
即,就是,换言之
inverted hour
逆(反)时针的
索引,指标,刻度
indefinite
in extenso
无穷大,无限大
inverted hour
逆(反)时针的
内部的,在内
inter alia
input/output
information technology
information theory
independent variable
loco citato
上述引文中
least common multiple
最小公倍数(式)
common multiple
最低公倍式
直线的,一次的,线性的
loco citato
上述引文中
least significant digit
最低(数)位,最右(数)位
mean absolute error
平均绝对误差
mathematical
mathematics
最大,最大值
最小,最小值
mean square
数,编号,第…号
necessary and
sufficient
充要条件,充分且必要的条件
nota bene= note well
数,编号,第…号
ordinary differential equation
常微分方程
相反的,对面
普通的,通常的
平行的,平行线,并联的
partial differential equation
偏微分方程
program evaluation and
techniques
计划评审技术(统筹方法)
proportional part
pr(pri,pry)
初级,最初的
perpendicular
proceeding
please turn over
请见(本页的)反面,请翻到下页
quod erat demonstrandum
证毕,证完,这就是所要证的,所求证者
with respect to
关于,相对于
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以上网友发言只代表其个人观点，不代表新浪网的观点或立场。数学符号英文读法【转载】
数学符号英文读法【转载】 来源： 金晟业的日志
Fractions 分数通常将分子读为基数，将分母读为序数。&1/2 = a (or one) half&1/3 = a (or one) third&1/4 = a quarter or one fouth&1/5 = a (or one) fifth&2/3 = two thirds&9/10 = nine tenths&53/4 = five and three quarters&15/64= fifteen over (or by) sixty-four&15% = fifteen per cent&4& = four per mill
Decimals 小数0.4 = zero (or nought) point four&.01 = point (or decimal) nought one&12.34 = twelve point three four&567.809 = five hundred and sixty-seven point eight nought nine&30.45 = thirty point four five, five recurring&0.3% = decimal three percent
Mathematic Forms 数学式(1) Addition 加法&1+2=3 One and two are three.2+3=5 Two plus three equals five.&4+0=4 Four and nought is equal to four.&45+70+152=267 45,70 and 152 added are (or make) 267&the sum (or total) is 267.(2)Subtraction 减法&9-4=5 Nine minus four equals (or is equal to) five.&15-7=8 Seven from fifteen leaves eight.&23,654-8,175=15,479 8,175 (take or subtracted) from 23,654 leaves 15,479. The difference&(or The remainder) is 15,479.&Nine from five won`t go.Multiplication 乘法&1&0=0 One multiplied by nought equals nought.&1&1=1 Once one is one.&2&1=2 Twice one is two.&3&5=15 Three times five is fifteen&6&0=0 Multiply six by nothing, and the result is nothing.Division 除法&9&3=3 Nine divided by three maks (or is equal to) three.&20&5=4 Five into twenty goes four times.&余13 23 into 4567 goes 198 times, and 13 remainder.&The quctient is 198, and 13 remainder.
Time 时间(1)Hours 钟点&2h.5'8" = two hours five minutes eight seconds 2小时5分8秒&6.18 = six eighteen 6时18分&8.30 a.m.= eight thirty a.m.['ei 'em] 上午8时30分&the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] train 下午6时零5分列车&又二十四小时混合制的写法和读法如下：&0900 = 0 nine hunderd (上午)9时&0910 = 0 nine ten (上午)9时10分&1300 = thirteen hundred 13时(下午1时)&
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数学符号读法及常用符号英文
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1.75亿学生的选择
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1.75亿学生的选择
如何看到英语就认识,不用记单词,记得上数学课的时候,老师说他学过音标,知道该怎么读,就是发音不标准请问这给音标有什么关系吗,学了音标,记单词能好记一点吗,也能做到看到单词或句子就知道怎么读吗.或听写时听老师发音,就知道怎么写吗,谁能教我怎样学习音标,不要网上的,只要个人经历,最好是过来人,我认为好的话,额外加分,我上初一,小学认为语数最重要,所以就没怎么学语言,望各位救救我这只迷途的懒羊羊吧
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1.75亿学生的选择
个人认为学会音标对记忆单词很有帮助,有些单词你知道怎么读自然就写出来了,看到他也会知道怎么读.但是只是知道发音而已,记忆汉语意思的话还是要背的
音标怎么学好学
英语的音标就像是汉语的拼音一样，开始学的时候发音一定要标准，否则对以后英语听力的影响很大。个人建议你找一个口语好的老师或者是你买点学习资料，资料里最好是有教发音方法的，这样会对你有帮助。没有什么捷径，勤加练习就好
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