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MathGroup Archive 2004

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Re: Solving an equation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51492] Re: Solving an equation
  • From: jujio77 at yahoo.com (Scott)
  • Date: Tue, 19 Oct 2004 02:56:32 -0400 (EDT)
  • References: <cknuhk$624$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

OK,

I figured out how to find these roots graphically.  We want the
solutions of Gamma[x+ I y]=a+Ib.
A=Plot3D[Re[Gamma[x+I y]]-a,{x,..},{y,..},
PlotRange->{0,10^-10},ClipFill->None,ViewPoint->{0,0,10^5}]
B=Plot3D[Im[Gamma[x+Iy]]-b,{x,..},{y,..},
PlotRange->{0,10^-10},ClipFill->None,ViewPoint->{0,0,10^5}]
Show[A,B]

The intersections where y is not =0 are solutions.


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