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自动化专业英语常用数学符号及表达式 第一篇:自动化专业英语常用数学符号及表达式thereexists∃forallpqpimpliesq/ifp,thenqpqpifandonlyifq/pisequivalenttoq/pandqareequivalent2集合(Sets)xAxbelongstoA/xisanelement(oramember)ofAxAxdoesnotbelongtoA/xisnotanelement(oramember)ofAABAiscontainedinB/AisasubsetofBABAcontainsB/BisasubsetofAABAcapB/AmeetB/AintersectionBABAcupB/AjoinB/AunionBB/AAminusB/thedifferencebetweenAandBA×BAcrossB/theCartesianproductofAandB(A与B的笛卡尔积)3实数(Realnumbers)x+1xplusonex-1xminusonex±1xplusorminusonexyxy/xmultipliedbyy(x-y)(x+y)xminusy,xplusyxxoveryy=theequalssignx=5xequals5/xisequalto5x≠5x(is)notequalto5x≡yxisequivalentto(oridenticalwith)yx>yxisgreaterthanyx≥yxisgreaterthanorequaltoyxxyxislessthanorequaltoy00x1|x|zeroislessthanorequaltoxislessthanorequalto1modx/modulusxx2xsquared/x(raised)tothepower2x3xcubedx4xtothefourth/xtothepowerfourxnxtothenth/xtothepowernx-nxtothe(power)minusn∑n!(x+y)2xinaii1x2yxˆnfactorialxplusyallsquaredxi/xsubscripti/xsuffixi/xsubithesumfromiequalsonetonai/thesumasirunsfrom1tonoftheaixoveryallsquaredxhatxbar~xxtilde线性代数(Linearalgebra)||x||thenorm(ormodulus)ofxOOA/vectorOAOAOA/thelengthofthesegmentOAATAtranspose/thetransposeofAA-1Ainverse/theinverseofAf(x)fx/fofx/thefunctionfofxf:S→TafunctionffromStoTxmapstoy/xissent(ormapped)toyf(x)f(x)fprimex/fdashx/the(first)derivativeofffdouble–primex/fdouble–dashx/thesecondderivativeoffwithrespecttoxwithrespecttoxf(x)ftriple–primex/ftriple–dashx/thethirdderivativeoffwithrespecttoxf(4)fourx/thefourthderivativeoffwithrespecttoxlnylogytothebasee/logtothebaseeofy/naturallog(of)y函数(Functions)fthepartial(derivative)offwithrespecttox1x12thesecondpartial(derivative)offwithrespecttox1∂f∂x12∞theintegralfromzerotoinfinitylimx→0thelimitasxapproacheszerofromabove一、个人简历ResumePersonaldetails1.Name:QinFukun2.Age:203.DateofBirth:December24,19874.Sex:Male5.MaritalStatus:single6.Address:349HepinStreet,Wuhan,Hubei,430081,7.Tel:0722-598256398.E-mail:9.Education:10.Workexperience:11.Honors:12.Coursetaken:13.Foreignlanguage:14.Refer

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