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Re: plot command

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58118] Re: [mg58091] plot command
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Sun, 19 Jun 2005 03:43:20 -0400 (EDT)
  • Reply-to: hanlonr at cox.net
  • Sender: owner-wri-mathgroup at wolfram.com

In the equation, use Log[s] and use  == vice =

sol=Log[v]==A9100*Log[s];

sol2=v/.Solve[sol,v][[1]]

s^A9100

sol3=D[sol2,s]

A9100*s^(A9100 - 1)

To Plot, A9100 must be defined

Plot[sol3/.A9100->2.5,{s,0,100}];


Bob Hanlon

> 
> From: "Bosch, Darrell" <bosch at vt.edu>
To: mathgroup at smc.vnet.net
> Date: 2005/06/18 Sat AM 06:07:44 EDT
> Subject: [mg58118] [mg58091] plot command
> 
> 
> Dear Group:  I am trying to solve an equation, take the derivative and 
> plot the derivative as shown below.  I get a message below the Plot 
> request stating
> 
> "Syntax::sntxi: "Incomplete expression; more input is needed."  Any help 
> would be greatly appreciated.  Darrell Bosch
> 
> 
> 
> 
> 
>  
> 
> sol = Log[v]=A9100*Log(s)
> 
> sol2 = Solve[sol,v]
> 
> sol3 = D[sol2,s]
> 
> Plot[Evaluate[sol3],{s,0,100}]
> 
> 
> 
> 
> 


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