Re: Solving an equation
- To: mathgroup at smc.vnet.net
- Subject: [mg51377] Re: Solving an equation
- From: Roger Bagula <tftn at earthlink.net>
- Date: Fri, 15 Oct 2004 02:47:33 -0400 (EDT)
- References: <cklle4$eqe$1@smc.vnet.net>
- Reply-to: tftn at earthlink.net
- Sender: owner-wri-mathgroup at wolfram.com
Try using FindRoot[]
It should work if you have a starting value near the root.
It gives a zeta zero root by this method:
FindRoot[Zeta[z]==0,{z,{1/2+14*I,1/2+I*200*I}}]
Scott wrote:
>I have an equation, Gamma[a+I b] = some complex number. I need to
>solve this equation for a and b. I can write a+I b as z, but it can't
>be solved through NSolve. What I have been doing is a double do loop
>for a and b and getting some number. Then I compare this to the
>number I have. Then I narrow down my possibilities for a and b, and
>go through the process again. Does anyone know of a better way to do
>this problem? Is there a way to have Mathematica compare each result
>of the do loop to a given value, and given certain conditions spit out
>an answer for a and b?
>
>Hope that makes sense.
>
>
>
--
Respectfully, Roger L. Bagula
tftn at earthlink.net, 11759Waterhill Road, Lakeside,Ca 92040-2905,tel: 619-5610814 :
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