lxxx是什么意思x在线翻译读音例句

实用标准文案

文档

常用的数学符号英文读法

一、一般符号对应的英文单词

．period句号

，comma逗号

：colon冒号

；semicolon分号

！exclamation惊叹号

？questionmark问号

─hyphen连字符

’apostrophe省略号；所有格符号

—dash破折号

‘’singlequotationmarks单引号

“”doublequotationmarks双引号

()parentheses圆括号

[]squarebrackets方括号

《》Frenchquotes法文引号；书名号

...ellipsis省略号

tandemcolon双点号

\"ditto同上

‖parallel平行双线号

／virgule斜线号

＆ampersand=and

～swungdash代字号

section;division分节号

→arrow箭号；参见号

＋plus加号；正号

－minus减号；负号

plusorminus正负号

ismultipliedbyorcross叉乘

isdividedby除号

＝isequalto等于号

≠isnotequalto不等于号

≡isequivalentto全等于号

≌isequaltoorapproximatelyequalto等于或约等于号

≈isapproximatelyequalto约等于号

＜islessthan小于号

＞ismorethan（isgreaterthan在数学中更常用）大于号

≮isnotlessthan不小于号

≯isnotmorethan不大于号

≤islessthanorequalto小于或等于号

≥ismorethanorequalto大于或等于号

％percent百分之…

‰permill千分之…

实用标准文案

文档

∞infinity无限大号

∝variesas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

pi圆周率

△triangle三角形

⊥perpendicularto垂直于；另外normalto，rightto也都有垂直的意思。

∪unionof并，合集

∩intersectionof交，通集

∫theintegralof…的积分

∑(sigma)summationof总和

degree度

′minute分

″second秒

＃number…号

℃Celsiussystem摄氏度

＠at单价

∏pi

.dot(点乘就是centereddot)

∂：偏微分符号,∂读作round法国人发明的.

偏导数英文翻译为partialderivative,因此有时读为partial.还有一种读法,念成round

∂：是希腊字母的古典写法,数学里只用作表示偏导数的记号,在表示偏导数的时候,一般

不念字母名称,中国人大多念作“偏”,(例如z对x的偏导数,念作“偏z偏x”.)

(简单的把∂y/∂x读成偏y比偏x)

倒三角符号▽读“Nabla”,奈不拉,也可以读作“Del”，读nabla的居多，Del

在某些英文书里会见到。nabla符号本身具有不同的功能，当它按不同的乘法规

则作用于函数时会分别得到

f’fprimef撇

A上面一个横杠：Abar

A上面一个星星*：Aasterisk

A上面一个波浪线～：Atilde

A的厄米共轭（注意不是加号，那个竖比横长）：Adagger（dagger：短剑，匕

首）

梯度：grandient符号为grad，散度：divergence符号为div。此时可直接读

作grandient（divergence）of...

实用标准文案

文档

逻辑

∃thereexist

∀forall

p⇒qpimpliesq/ifp,thenq

p⇔q

pifandonlyifq/pisequivalenttoq/pandqare

equivalent

x∈AxbelongstoA/xisanelement(oramember)ofA

x∉A

xdoesnotbelongtoA/xisnotanelement(oramember)

ofA

A⊂BAiscontainedinB/AisasubsetofB

A⊃BAcontainsB/BisasubsetofA

A∩BAcapB/AmeetB/AintersectionB

A∪BAcupB/AjoinB/AunionB

ABAminusB/thediferencebetweenAandB

ABAcrossB/thecartesianproductofAandB

numbers

x+1xplusone

x-1xminusone

x1xplusorminusone

xyxy/xmultipliedbyy

(x-y)(x+

y)

xminusy,xplusy

xyxovery

=theequalssign

x=5xequals5/xisequalto5

x≠5x(is)notequalto5

x≡yxisequivalentto(oridenticalwith)y

x≡yxisnotequivalentto(oridenticalwith)y

x>yxisgreaterthany

x≥yxisgreaterthanorequaltoy

x

x≤yxislessthanorequaltoy

实用标准文案

文档

0

0≤x≤1

zeroislessthanorequaltoxislessthanorequalto

1

|x|modx/modulusx

x2xsquared/x(raised)tothepower2

x3xcubed

x4xtothefourth/xtothepowerfour

xnxtothenth/xtothepowern

x−nxtothe(power)minusn

x(square)rootx/thesquarerootofx

x3cuberoot(of)x

x4fourthroot(of)x

xnnthroot(of)x

(x+y)2xplusyallsquared

(xy)2xoveryallsquared

n!nfactorial

x^xhat

xxbar

xxtilde

xixi/xsubscripti/xsuffixi/xsubi

∑i=1nai

thesumfromiequalsonetonai/thesumasirunsfrom

1tonoftheai

algebra

‖x‖thenorm(ormodulus)ofx

OA→OA/vectorOA

OAOA/thelengthofthesegmentOA

ATAtranspose/thetransposeofA

A−1Ainverse/theinverseofA

ons

f(x)fx/fofx/thefunctionfofx

f:S→TafunctionffromStoT

x→yxmapstoy/xissent(ormapped)toy

f\'(x)

fprimex/fdashx/the(first)derivativeoffwith

respecttox

f\'\'(x)fdouble-primex/fdouble-dashx/thesecondderivative

实用标准文案

文档

offwithrespecttox

f\'\'\'(x)

triple-primex/ftriple-dashx/thethirdderivativeof

fwithrespecttox

f(4)(x)ffourx/thefourthderivativeoffwithrespecttox

∂f∂x1thepartial(derivative)offwithrespecttox1

∂2f∂x

12

thesecondpartial(derivative)offwithrespectt中国诗词大会第三季总决赛 ox1

∫0∞theintegralfromzerotoinfinity

lim⁡x→0thelimitasxapproacheszero

lim⁡x→0

+

thelimitasxapproacheszerofromabove

lim⁡x→0

−

thelimitasxapproacheszerofrombelow

logey

logytothebasee/logtothebaseeofy/naturallog

(of)y

Lny

logytothebasee/logtothebaseeofy/naturallog

(of)y

二、一些函数关系的读法

A与B的乘积the___productofAandB

（___中填乘积的性质，例如外积就填outer，内积就填inner)

A乘以BAtimesBorAismultipliedbyB

A/BAoverBB分之A的最普通读法

f(x)fofx函数f(x)

exp(n)etopowersofne的n次幂

三、PronunciationofNumerals数词的读法

alsandOrdinals基数和序数

(1)100以内的数词

基数序数

RomanArabic

NumeralsNumerals

罗马数字阿拉伯数字读法数码读法

I1one1stthefirst

II2two2ndthesecond

III3three3rdthethird

IV4four4ththefourth

V5five5ththefifth

VI6six6ththesixth

VII7seven7ththeseventh

VIII8eight8ththeeighth

实用标准文案

文档

IX9nine9ththeninth

X10ten10ththetenth

XI11eleven11ththeeleventh

XII12twelve12ththetwelfth

XIII13thirteen13ththethirteenth

XIV14fourteen14ththefourteenth

XV15fifteen15ththefifteenth

XVI16sixteen1古诗《江上》 6ththesixteenth

XVII17seventeen17ththeseventeenth

XVIII18eighteen18ththeeighteenth

XIX19nineteen19ththenineteenth

XX20twenty20ththetwentieth

XXI21twenty-one21stthetwenty-first

XXV25twenty-five25ththetwenty-fifth

XXX30thirty30ththethirtieth

XL40forty40ththefortieth

L50fifty50ththefiftieth

LX60sixty60ththesixtieth

LXX70seventy70ththeseventieth

LXXX80eighty80ththeeightieth

XC90ninety90ththeninetieth

IC99ninety-nine99ththeninety-ninth

C100onehundred100ththehundredth

CII102ahundred102ndthe(one)hundred

andtwoandsecond

246twohundredandforty-six

751sevenhundredandfifty-one

(2)1000以上的数词

1,000=onethousand一千

10,000=tenthousand一万

100,000=onehundredthousand十万

1,000,000=onemillion一百万

10,000,000=tenmillion一千万

100,000,000=onehundredmillion一亿

(3)十亿以上的大数，英美有不同的读法：

英国美国

十亿onethousandmillion=onebillion

百亿tenthousandmillion=tenbillion

千亿onehundredthousandmillion=onehundredbillion

万亿onebillion=onetrillion

ons分数

实用标准文案

文档

通常将分子读为基数，将分母读为序数。

1/2=a(orone)half

1/3=a(orone)third

1/4=aquarteroronefourth

1/5=a(orone)fifth

2/3=twothirds

9/10=ninetenths

53/4=fiveandthreequarters

15/64=fifteenover(orby)sixty-four

15%=fifteenpercent

4‰=fourpermill

ls小数

0.4=zero(ornought)pointfour

.01=point(ordecimal)noughtone

12.34=twelvepointthreefour

567.809=fivehundredandsixty-sevenpointeightnoughtnine

3带春的古诗词100首 0.45=thirtypointfourfive,fiverecurring

0.3%=decimalthreepercent

aticForms数学式

(1)Addition加法

1+2=3Oneandtwoarethree.

2+3=5Twoplusthreeequalsfive.

4+0=4Fourandnoughtisequaltofour.

45+70+1烛之武退秦师注释 52=26745,70and152addedare(ormake)267

thesum(ortotal)is267.

演算时的读法：

Threeandsevenareten;

Iwrite(orIwritedown,orIputdown)anoughtandcarryone.

FourandonethatIcarryarefive,andeightmakethirteen,andthree

sixteen;

one(thatIcarry)aretwo;

Iputdowntwo.

Thesum(ortotal,ortheresultoftheaddition)istwohundredandsixty.

37,80and143addedtogether,and(ormake)260.

(2)Subtraction减法

9-4=5Nineminusfourequals(orisequalto)five.

15-7=8Sevenfromfifteenleaveseight.

23,654-8,175=15,479

8,175(takeorsubtracted)from23,654leaves15,479.

Thedifference(orTheremainder)is15,479.

Ninefromfivewon`tgo.

实用标准文案

文档

演算时的读法：

Noughtfromnought(leaves)nought.

Onefromoneleavesnought(ornothing).

Twofromthree(leaves)one.

Ican`ttake(orsubtract)fivefromfour;Imustborrowten;

fivefromfourteenleavesnine.

Thedifference(orTheremainder)isninethousandonehundred.

5210(takeorsubtracted)from14,310leaves9,100.

(3)Multiplication乘法

10=0Onemultipliedbynoughtequalsnought.

11=1Onceoneisone.

21=2Twiceoneistwo.

35=15Threetimesfiveisfifteen

60=0Multiplysixbynothing,andtheresultisnothing.

演算时的读法:

Fivetimesnine(orNinemultipliedbyfive)a清明节手抄报简单又漂亮的画 reforty-five;

Iputdownfiveandcarryfour.

Fivetimessevenarethirty-fiveandfour(thatIcarry)arethirty-nine;

Iwritedownnineandcarrythree.

Fivetimessixmakethirtyandthree(thatIcarry)thirty-three;

Iputdownthirty-three.

Eighttimesnine(orEightnine)areseventwo;

Iwritetwoandcarryseven.

Eightsevensmakefifty-sixandsevenaresixty-three.

Iputdownthreeandcarrysix.

Eightsixesmakeforty-eightandsixfifty-four;

Iwritedownfifty-four.

Inowaddthepartialresults(orproducts)Five.

Twoandnineareeleven.

Threeandthreearesixandoneareseven.

Fourandthreemakeseven.

(4)Division除法

93=3Ninedividedbythreemakes(orisequalto)three.

205=4Fiveintotwentygoesfourtimes.

456723=198余1323into4567goes198times,and13remainder.

Thequoctientis198,and13remainder.

演算时的读法:

Fifteenintothirteenwon’tgo;

fifteenintoonehundredandthirty-eightgoesninetimes;

ninetimesfifteenareonehundredandthrety-five;

onehundredandthirty-fivefromonehundredandthirty-eightleaves

three;

实用标准文案

文档

Ibringdownseven;fifteenintothirty-sevengoestwice;

twicefifteenarethirty;thirtyfromthirty-sevenleavesseven.

The(exact)quotientisninety-two,andsevenremainder;

15into1387goes92times,and7remainder.

时间

1)Hours钟点

2h.5’8\"=twohoursfiveminuteseightseconds2小时5分8秒

6.18=sixeighteen6时18分

=[’ei’em]上午8时30分

=thesix([’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=0ninehundred(上午)9时

0910=0nineten(上午)9时10分

1300=thirteenhundred13时(下午1时)

1525=fifteentwenty-five15时25分(下午3时25分)

2000=twentyhundred20时(下午8时)

at5o’c=atfiveo’clock五点钟

(2)Date日期

Oct.1=Octoberfirst10月1日

Oct.1st=Octoberthefirst10月1日

1stOct.1949=thefirstofOctober,nineteenforty-nine1949年10月

1日

3/5=[英]May(the)third5月3日；[美]Marchfifth3月5日

[附注]联系日期前置词用on.

(3)Year年份

684B.C.=Sixeighty-fourB.C.[’bi:’si:]公元前684年

1960=nineteensixty;nineteenhundredandsixty

19-nineteensomething

1950’snineteenfifties二十世纪五十年代

[附注]联系年份的前置词用in.

s号码

(1)TelephonesNumbers电话号码

1023=oneOtwothree;tentwenty-three

1227=onedoubletwo(ortwotwo)seven

0386=Othreeeightsix

0096=doubleO(orOO)ninesix

7000=sevenOdoubleO=seventhousand

No.26=Number26第26号

Room201=RoomtwoOone第201房间

实用标准文案

文档

10ChanganStreet=TenChanganStreet长安街10号

2)Writings书籍作品

Vol.I=Volumeone(orthefirstvolume)卷一

=Chaptertwo(orthesecondchapter)第2章

Page3=pageThree(orthethirdpage)第3页

Seepp.5-10=SeePagesfivetoten见第5-10页

ActV=Actfive(orthefifthact)第5幕

HamletIII1:56=HamletActThree,fty-six《哈姆雷

特》第3幕第一场第56行

Matt.7:12=Matthew,ChapterSeven,VerseTwelve《马可福音》第七章第

12节

BeethovenOp.49=BeethovenOpusforty-nine贝多芬作品第49号

4to=quarto四本开8vo=octavo八本开

(3)Other其他

WorldWarI=WorldWarOne第一次世界大战

WorldWarII=WorldWarTwo第二次世界大战

CharlesI=CharlestheFirst查理一世

HenryV=HenrytheFifth亨利五世

Mr.-=;-and-so某某先生

Mr.B-=Mr.B

-Esq.,of-=thetownofBlankEsquireofBlankUniversity某大学某某先

生

thetownf=thetownofBlank某某城

Theresultofthegamewas3-0比赛结果是三比零。

货币

(1)Britishcurrency英币

6d.=sixpence六便士

1/2d.=ahalfpenny半便士

11/2d.=apeneyhalfpennyorthreehalfpenyorthreehalfpence一便士

半

1/4d.=afarthing一个铜元

33/4d.=threepencethreefarghings三便士三铜元

1s.6d.(or1/6)=one(shilling)andsix(pence)一先令六便士

￡1.18=(or￡1.18s.)=onepoundeighteen(shillings)一镑十八先令

￡1.3s.6d.=onepound,threeshillings(and)sixpence

4/51/2(or4s.51/2d.)=four(shillings)andfivepencehalfpenny

(2)cy

$1.20dollar(and)twenty(cents)美金一元二角

$4.25=fourdollarstwenty-fivecents美金四元二角五分

实用标准文案

文档

(3)Sovietcurrency前苏联币

6Rb.15=sixroublesfifteenkopecks六卢布十五戈比

(4)Germancurrency德币

1m.60=onemarksixtypfennig-马克六十芬尼

(5)Frenchcurrency法国币

1fr.30=(centimes)-法郎三十生丁

0fr.六年级学弈文言文翻译 15=fifteencentimes十五生丁

(6)ChinesePeople’sCurrency人民币

￥1.50=oneyuanandahalf一元五角

JMP10.35=JMPtenyuanthirty-five(fen)人民币十元三角五分

附注：yuan单复数没有变化：?也可作为日本本位币“圆”的符号。

andMeasures度量衡

(1)length,area,andvolume长度、面积和容积

3in=threeinches三英寸

15ft.5in=fifteenfootfive(inches)十五英尺五英寸

[附注]尤其在inches省略时,ft.读作foot;如果inches也念出来，ft可以读

作fett.

18’65/1\"=eighteenfootsixandafif古诗三十首 th(inches)

108feet=tenbyeightfeet十英尺长，八英尺宽

5\"431/2=fiveinchesbyfourbythreeandahalf长五英寸，宽四英

寸，高三英寸半

[附注]以上二例中，乘号表示面积或容积。

(2)Weight重量

12dr.23gr.=Twelvedramstwenty-threegrains十二打兰二十三喱

10oz.4dr.=Tenouncesfourdrams十盎司打兰

(3)Capacity容量

3gi.=threegills三及耳

1qt.1pt=onequartonepint一夸脱一品脱

[附注]qt.,pt.的复数是qts.,pts.,也可以不加s.

20gal.5qt.=Twentygallonsfivequarts二十加仑五夸脱

5bu.3pk.=Fivebushelsthreepecks五蒲式耳三配克