常用数学符号及数学表达式的英语读法.pdf

常用数学符号及数学表达式的英语读法.pdf

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常用数学符号及数学表达式的读法常用数学符号及数学表达式的读法双语班教学辅助资料1/30.01OpointOone;zeropointzeroone;noughtpointnoughtone+athird;onethirdminus;negativeplusorminusmultipliedby;timesdividedby=isequalto;equalsisidenticallyequaltoisapproximatelyequalto;approximatelyequalsroundbrackets;parenthesessquarebrackets;angularbracketsbracesintersectionunionisequivalenttothereforebecausexnloglogxtothebasenx10loglogxtothebase10（commonlogarithm）xeloglogxtothebasee（naturallogarithm）nxthenthpowerofx;xtothepowernnnxx,1thenthrootofx,xtothepoweroneovernxaxapproachesthelimitax1sinarcsineofxxaxapproachesthelimitasummationof;sigma|x|theabsolutevalueofxxxbarbbprimebbdoubleprimebbtripleprimeb1bsubonebmbsubmxxdot常用数学符号及数学表达式的读法常用数学符号及数学表达式的读法双语班教学辅助资料2/3xxtwodotsmbbdoubleprimesubmf（x）functionfofxy=f（x）yisafunctionofxdxdeeofx;deex;differentialxdxdythefirstderivativeofywithrespecttox;deeydeex22dxydthesecondderivativeofywithrespecttoxnndxydthenthderivativeofywithrespecttoxxythepartialderivativeofywithrespecttoxintegralbaintegralbetweenlimitsaandbinfinityFvectorFx+yxplusy（a+b）bracketaplusbbracketcloseda=baequalsb;aisequaltob;aisbabaisnotequaltob;aisnotbabaplusorminusbabaisapproximatelyequaltobabaisgreaterthanbaaismuchgreaterthanbabaisgreaterthanorequaltobabaislessthanbabaislessthanorequaltobabaismuchlessthanbx=xapproachesinfinityaangleaa|baisparalleltobs=vtsequalsisequaltovmultipliedbyt;sequalsvtimesttsvvequalssdividebyt;vissovert常用数学符号及数学表达式的读法常用数学符号及数学表达式的读法双语班教学辅助资料3/32xxsquare;xsquared.Thesquareofx;thesecondpowerofx;xtothesecondpower2552thesecondpowerof5is25;5squareis25;thesquareof5is25;5tothesecondpowerisequalto253yycube;ycubed;thecubeofy;ytothethirdpower;ytothethird10yytotheminustenth（power）24thesquarerootof4isplusorminus23athecubicrootofa52xthefifthrootofxsquaretVVtaaequalsVsubtminusVoverdividedbytfedcba）（aplusbminuscmultipliedbyd,alldividedbyeequalsf5%fivepercent5%ofivepermille