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Re: What is the problem? There are no images and no wrong reports for

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112365] Re: What is the problem? There are no images and no wrong reports for
  • From: peter <justwanglunwei at gmail.com>
  • Date: Sat, 11 Sep 2010 05:43:26 -0400 (EDT)
  • References: <i64kgr$3al$1@smc.vnet.net> <i6a5j9$kol$1@smc.vnet.net>

On Sep 9, 4:24 pm, apjs64 <apj... at gmail.com> wrote:
> On Sep 7, 4:02 pm, peter <justwanglun... at gmail.com> wrote:
>
> > Hello Mathematica community, I really need some help....
> > I realized there are some mistakes in this program, but I can't find
> > out what it is,  I keep trying for weeks, still there are some
> > problem, I never used Mathematica before
>
> > a==Exp[(-2r^2)/3];
> > b==BesselJ[0,(r*Sqrt[x^2+y^2])/0.8];
> > c==r^2;
> > d==5a;
> > Plot[Abs[Integrate[r*b*a*Exp[-I(c+d)]dr,{r,0,=E2=88=9E}]]^2,{x,-.0=
> 1,0.01},
> > {y,-0.01,0.01}]
>
> > =EF=BC=88I is Complex i=EF=BC=89
>
> Hi Peter,
>
> a = Exp[(-2 r^2)/3]
>
> == is equivalence.
>
> The Plot... line has a lot of problems. Break it down step by step,
> get each inner component
> working and then build it back up.
>
> regards,
>
> Jeremy

thank you~i'll work harder~


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