数学公式的英文读法

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1、数学公式的英文读法&数学英文词汇1.Logic        ∃        thereexist∀        forallp⇒q        pimpliesq/ifp,thenqp⇔q        pifandonlyifq/pisequivalenttoq/pandqareequivalent2.Sets        x∈A        xbelongstoA/xisanelement(oramember)ofAx∉A        xdoesnotbelongtoA/xisnotanelement(oramemb

2、er)ofAA⊂B        AiscontainedinB/AisasubsetofBA⊃B        AcontainsB/BisasubsetofAA∩B        AcapB/AmeetB/AintersectionBA∪B        AcupB/AjoinB/AunionBAB        AminusB/thediferencebetweenAandBA×B        AcrossB/thecartesianproductofAandB3.Realnumbers        x+1        

3、xplusonex-1        xminusonex±1        xplusorminusonexy        xy/xmultipliedbyy      (x-y)(x+y)        xminusy,xplusy      xy        xovery=        theequalssignx=5        xequals5/xisequalto5x≠5        x(is)notequalto5x≡y        xisequivalentto(oridenticalwith)yx≡y  

4、      xisnotequivalentto(oridenticalwith)yx>y        xisgreaterthanyx≥y        xisgreaterthanorequaltoyx

5、x

6、        modx/

7、modulusxx2        xsquared/x(raised)tothepower2x3        xcubedx4        xtothefourth/xtothepowerfourxn        xtothenth/xtothepowernx−n        xtothe(power)minusnx        (square)rootx/thesquarerootofxx3        cuberoot(of)xx4        fourthroot(of)xxn        nthroot(of

8、)x(x+y)2        xplusyallsquared(xy)2        xoveryallsquaredn!        nfactorialx^        xhatx¯        xbarx˜        xtildexi        xi/xsubscripti/xsuffixi/xsubi∑i=1nai        thesumfromiequalsonetonai/thesumasirunsfrom1tonoftheai4.Linearalgebra        ‖x‖        the

9、norm(ormodulus)ofxOA→        OA/vectorOAOA¯        OA/thelengthofthesegmentOAAT        Atranspose/thetransposeofAA−1        Ainverse/theinverseofA5.Functions        f(x)        fx/fofx/thefunctionfofxf:S→T        afunctionffromStoTx→y        xmapstoy/xissent(ormapped)to

10、yf'(x)        fprimex/fdashx/the(first)derivativeoffwithrespecttoxf''(x)        fdouble-primex/fdouble-dashx/t