# 我想要所有數學符號既英文

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常用英文數學式/符號的讀法

Fractions 分數

通常將分子讀為基數，將分母讀為序數。

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 小數

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 數學式

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 減法

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.

4567÷23=198餘13 23 into 4567 goes 198 times, and 13 remainder.

The quctient is 198, and 13 remainder.

Time 時間

(1)Hours 鐘點

2h.5′8″ = two hours five minutes eight seconds 2小時5分8秒

6.18 = six eighteen 6時18分

8.30 a.m.= eight thirty a.m.['ei 'em] 上午8時30分

the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] train 下午6時零5分列車

又二十四小時混合制的寫法和讀法如下：

0900 = 0 nine hunderd (上午)9時

0910 = 0 nine ten (上午)9時10分

1300 = thirteen hundred 13時(下午1時)

1525 = fifteen twenty-five 15時25分(下午3時25分)

2000 = twenty hundred 20時(下午8時)

at 5 o’c =at five o’clock 五點鐘

2008-08-22 18:36:34 補充：

(2)Date 日期

Oct.1 =October first 10月1日

Oct.1st = October the first 10月1日

Ist Oct. 1949 = teh first of October, nineteen forty-nine 1949年10月1日

3/5 = [英]May (the) third 5月3日；[美]March fifth 3月5日 (3)Year 年份

2008-08-22 18:36:41 補充：

684 B.C. =Six eighty-four B.C. ['bi:'si:] 西元前684年

1960 = nineteen sixty; nineteen hundred and sixty

19- nineteen something 1950’s nineteen fifties 二十世紀五十年代

2008-08-22 18:36:59 補充：

符號的英文讀法

period 句號

≈ is approximately equal to 約等於號

, comma 逗號 

＜ is less than 小於號

： colon 冒號

＞ is more than 大於號

； semicolon 分號 B

≮ is not less than 不小於號

！ exclamation 驚嘆號

≯ is not more than 不大於號

？ question mark 問號

≤ is less than or equal to 小於或等於號

2008-08-22 18:37:27 補充：

≥ is more than or equal to 大於或等於號

‘ apostrophe 省略號, 所有格符號

％ percent 百分之…

- dash 破折號

2008-08-22 18:37:45 補充：

‰ per mill 千分之…

‘ ‘ single quotation marks 單引號

∞ infinity 無限大號

double quotation marks 雙引號

∝ varies as 與…成比例

( ) parentheses 圓括號

√ (square) root 平方根

2008-08-22 18:38:01 補充：

[ ] square brackets 方括號

∵ since; because 因為

《 》 French quotes 法文引號;書名號

∴ hence 所以

… ellipsis 省略號

∷ equals, as (proportion) 等於，成比例

¨ tandem colon 雙點號 ‑

∠ angle 角

2008-08-22 18:38:13 補充：

ditto 雙點號

⌒ semicircle 半圓

‖ parallel 雙線號

⊙ circle 圓

／ virgule 斜線號

○ circumference 圓周

＆ ampersand = and

π pi 圓周率

～ swung dash 代字型大小

△ triangle 三角形

§ section; division 分節號

⊥ perpendicular to 垂直於

→ arrow 箭號；參見號

∪ union of 並，合集

2008-08-22 18:38:35 補充：

＋ plus 加號；正號

∩ intersection of 交，通集

－ minus 減號；負號

∫ the integral of …的積分

± plus or minus 正負號

( ∑ sigma) summation of 總和

× is multiplied by 乘號

° degree 度

÷ is divided by 除號

′ minute 分

＝ is equal to 等於號

2008-08-22 18:38:45 補充：

″ second 秒

≠ is not equal to 不等於號

＃ number …號

≡ is equivalent to 全等於號

℃ Celsius system 攝氏度

≌ is equal to or approximately equal to 等於或約等於號

mm…millimeter

cm…centimeter

m…meter

l…liter

2008-08-22 18:38:56 補充：

ml…milliliter

g…gram

mg…milligram

ng…nanogram

cc…cubic centimeter

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