数学符号英文读法

数学符号英文读法【转载】

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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

diff

erence

(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.

4567÷

23=198

余

< br>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

< br>

6.18

=

six

eighteen

6

时

18

分

8.30

a.m.=

eight

thirty

a.m.['ei

'em]

上午< /p>

8

时

30

分

the

6.05

=

the

six

(nought)

five

p.m.['pi:'em]

train

下午

6

< br>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

)

1525

=

fifteen

twenty-five

15

时

25

分

(

下午

3

时

25

分

)

2000

=

twenty

hundred

20

时

(

下午

8

时

)

at

5

o'c

=at

five

o'clock

五点钟

(2)Date

日期

Oct.1

=October

first

10

月

< br>1

日

Oct.1st

=

October

the

first

10

1

日

Ist

Oct.

1949

=

teh

first

of

October,

nineteen

forty-nine

< br>1949

年

10

月

1

日

3/5

=

[

英

]May

(the)

third

5

月

3

日；

[

]March

fifth

< br>3

月

5

日

(3)Year

年份

684

B.C.

=Six

eighty-four

B.C.

['bi:'si:]

公 元前

684

年

1960

=

nineteen

sixty;

nineteen

hundred

and

sixty

19-

nineteen

something

1950's

nineteen

fifties

二十世纪五十年代

符号的英文读法

period

句号

≈

is

approximately

equal

to

约等于号

,

comma

逗号

＜

is

less

than

小于号

：

colon

冒号

＞

is

more

than

大于号

；

semicolon

分号

B

≮

is

not

less

than

不小于号

！

exclamation

惊叹号

≯

is

not

more

than

不大于号

？

question

mark

问号

≤

is

less

than

or

equal

to

小于或等于号

≥

is

more

than

or

equal

to

大于或等于号

'

apostrophe

省略号

；所有格符号

％

per

cent

百分之

…

-

dash

破折号

‰

per

mill

千分之

…

'

'

single

quotation

marks

单引号

∞

infinity

无限大号

double

quotation

marks

双引号

∝

varies

as

与

…

成比例

(

)

parentheses

圆括号

√

(square)

root

平方根

#

，

hash key

[ ] square brackets

方括号

∵

since; because

因为

《

》

French quotes

法文引号

;

书名号

∴

hence

所以

... ellipsis

省略号

∷

equals, as (proportion)

等于，成比例

¨

tandem colon

双点号

∠

angle

角

ditto

双点号

?

semicircle

半圆

‖

parallel

双线号

?

circle

圆

／

virgule

斜线号

○ circumference

圆周

＆

ampersand = and

π pi

圆周率

～

swung dash

代字号

△

triangle

三角形

§

section; division

分节号

?

perpendicular to

垂直于

→ arrow

箭号；参见号

∪

union of

并，合集

＋

plus

加号；正号

∩ intersection of

交，通集

－

minus

减号；负号

∫ the integral of …

的积分

±

plus or minus

正负号

( ∑ sigma) summation of

总和

×

is multiplied by

乘号

°

degree

度

÷

is divided by

除号

′ minute

分

＝

is equal to

等于号

″ second

秒

≠ is not equal to

不等于号

＃

number …

号

≡ is equivalent to

全等于号

℃

Celsius system

摄氏度

≌

is equal to or approximately equal to

等于或约等于号

＠

at

单价

幂次方通常用

< br>power

表示

.

例如

:10

的

7

次方

:the

seventh

power

of

ten

或

ten

to

the

seventh

power.

任何一个数都可以表示成

X

乘以

1 0

的

Y

次方

,

即

X

times

the

Yth(

或根据情况改为

nd,

r

d)

power

of

ten.

a

的平方：

a

square

or

a

squared

a

的立方：

a

cube

or

b

cubed

a

的

4

次方：

a

to

the

fourth

a

的

-1

次方：