数学符号读法

＝

'

'backquote'

＝

'''

'tilde'

＝

'~'

'backslash'

＝

''

'bar'

＝

'|'

'comma'

＝

','

'less'

＝

'<'

'period'

＝

'.'

'greater'

＝

'>'

'slash'

＝

'/'

'question'

＝

'?'

'space'

＝

' '

~~~~~~~~~~~~~~~~~~~~~~

￣

hyphen

连字符

' apostrophe

省略号；所有格符号

—

dash

破折号

? ?single quotation marks

单引号

“ ”double quotation marks

双引号

( ) parentheses

圆括号

[ ] square brackets

方括号

Angle bracket

{} Brace

《

》

French quotes

法文引号；书名号

... ellipsis

省略号

¨

tandem colon

双点号

同上

‖ parallel

双线号

／

virgule

斜线号

＆

ampersand = and

～

swung dash

代字号

§

section; division

分节号

→ arrow

箭号；参见号

＋

plus

加号；正号

－

minus

减号；负号

±

plus or minus

正负号

×

is multiplied by

乘号

÷

is divided by

除号

＝

is equal to

等于号

≠ is not equal to

不等于号

≡ is e

quivalent to

全等于号

≌

is equal to or approximately equal to

等于或约等于号

≈ is approximately equal to

约等于号

＜

is less than

小于号

＞

is more than

大于号

≮

is not less than

不小于号

≯

is not more than

不大于号

≤ is less than or equal to

小于或等于号

≥ is more than or equal to

大于或等于号

％

per cent

百分之

…

‰ per mill

千分之

…

∞ infinity

无限大号

∝

varies as

与

…

成比例

√ (square) root

平方根

∵

since; because

因为

∴

hence

所以

∷

equals, as (proportion)

等于，成比例

∠

angle

角

?

semicircle

半圆

?

circle

圆

○ circumference

圆周

π pi

圆周率

△

triangle

三角形

?

perpendicular to

垂直于

∪

union of

并，合集

∩ intersection of

交，通集

∫ the integral of …

的积分

∑ (sigma) summation of

总和

°

degree

度

′

minute

分

〃

second

秒

＃

number

…

号

℃

Celsius

system

摄氏度

＠

at

单价

x'

是

x

prime(

比如转置矩阵

)

x

是

x

double-prime

常用英 文数学式

/

符号的读法

Pronunciation

of

Numerals

数词的读法

----------------------------------------- -----------------------------

als

and

Ordinals

基数和序数

(1)100

以内的数词

基数

序数

Roman

Arabic

Numerals

Numerals

罗马数字

阿拉伯数字读法

数码

读法

I

1

one

1st

the

first

II

2

two

2nd

the

second

III

3

three

3rd

the

third

IV

4

four

4th

the

fourth

V

5

five

5th

the

fifth

VI

6

six

6th

the

sixth

VII

7

seven

7th

the

seventh

VIII

8

eight

8th

the

eighth

IX

9

nine

9th

the

ninth

X

10

ten

10th

the

tenth

XI

11

eleven

11th

the

eleventh

XII

12

twelve

12th

the

twelfth

XIII

13

thirteen

13th

the

thirteenth

XIV

14

fourteen

14th

the

fourteenth

XV

15

fifteen

15th

the

fifteenth

XVI

16

sixteen

16th

the

sixteenth

XVII

17

seventeen

17th

the

seventeenth

XVIII

18

eighteen

18th

the

eighteenth

XIX

19

nineteen

19th

the

nineteenth

XX

20

twenty

20th

the

twentieth

XXI

21

twenty-one

21st

the

twenty-first

XXV

25

twenty- five

25th

the

twenty-fifth

XXX

30

thirty

30th

the

thirtieth

XL

40

forty

40th

the

fortieth

L

50

fifty

50th

the

fiftieth

LX

60

sixty

60th

the

sixtieth

LXX

70

seventy

70th

the

seventieth

LXXX

80

eighty

80th

the

eightieth

XC

90

ninety

90th

the

ninetieth

IC

99

ninety-nine

99th

the

ninety-ninth

C

100

one

hundred

100th

the

hundredth

CII

102

a

hundred

102nd

the

(one)

hundred

and

two

and

second

246

two

hundred

and

forty-six

751

seven

hundred

and

fifty-one

(2)1000

以上的数词

1,000

=

one

thousand

一千

10,000

=

ten

thousand

一万

100,000

=

one

hundred

thousand

十万

1,000,000

=

one

million

一百万

10,000,000

=

ten

million

一千万

100,000,000=one

hundred

million

一亿

(3)

十亿以上的大数，英美有不同 的读法：

英国

美国

十亿

one

thousand

million

=

one

billion

百亿

ten

thousand

million

=

ten

billion

千亿

one

hundred

thousand

million

=

one

hundred

billion

万亿

one

billion

=

one

trillion

ons

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

ls

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

atic

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.

演算时的读法：

Three

and

seven

are

ten;

I

write(or

I

write

down,or

I

put

down)a

nought

?

2010-05-03

10:08

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正式会员

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and

carry

one.

Fo

ur

and

one

that

I

carry

are

five,

an

d

eight

make

thirt

een,and

three

sixteen;

I

write

do

wn

six

and

carry

one.

One

and

one

(that

I

carry)

are

two;

I

put

down

two.-

The

sum

(or

total,

or

the

resul

t

of

the

addition)

is

two

hundred

an

d

sixty.

37,80

and

143

added

to

gether,

and(or

ma

ke)

260.

(2)Subtraction

减

法

9-4=5

Nine

minus

four

equals

(or

i

s

equal

to)

five.

15-7=8

Seven

fro

m

fifteen

leaves

e

ight.

23,654-8,175=15,4

79

8,175

(take

or

subtracted)

from

23,654

leaves

15,4

79.

The

difference

(or

The

remainde

r)

is

15,479.

Nine

from

five

w

on`t

go.

演算时的读法：

No

ught

from

nought

(leaves)

nought.

O

ne

from

one

leave

s

nought

(or

nothi

ng).

Two

from

three

(l

eaves)

one.

I

can`

t

take

(or

subtrac

t)

five

from

four;

I

must

borrow

te

n;

five

from

fourteen

leaves

nine.-

The

difference

(or

Th

e

remainder)

is

ni

ne

thousand

one

hundred.

5210

(ta

ke

or

substracted)

from

14,310

leav

es

9,100.

(3)Multiplication

乘法

1×

0=0

One

multip

lied

by

nought

eq

uals

nought.

1×

1=1

Once

one

i

s

one.

2×

1=2

Twice

one

is

two.

3×

5=15

Three

tim

es

five

is

fifteen

6×

0=0

Multiply

si

x

by

nothing,

and

the

result

is

noth

ing.

演算时的读法

:

Fi

ve

times

nine

(or

Nine

multiplied

b

y

five)

are

forty- fi

ve;

I

put

down

fi

ve

and

carry

four.

Fi

ve

times

seven

ar