Re: Plotting g(x,y) along contour of f(x,y)
- To: mathgroup at smc.vnet.net
- Subject: [mg57122] Re: Plotting g(x,y) along contour of f(x,y)
- From: gnalle at ruc.dk (Niels L. Ellegaard)
- Date: Mon, 16 May 2005 21:35:20 -0400 (EDT)
- References: <d69v5k$95v$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
gnalle at ruc.dk (Niels L. Ellegaard) writes:
> I have two functions u(x,y) and phi(x,y) defined by
> u = Cos[x] + 0.3*(y-0.1*Cos[x])^2;
> phi=0.36 (y - 0.1 Cos[x])^2 + (-Sin[x] + 0.06 (y - 0.1 Cos[x]) Sin[x])^2;
>
> For some limited parameterinterval I can invert u with respect to y to
> get a function yy(x,uu) fulfilling
I made a mistake in my first post. The truth is that I need to invert
with respect to x to get a function xx(y,u) fulfilling
u(xx(y,u),y) = u(x,y) ; -Pi<x<0
Now I wish to plot phi(x,yy(x,u)) for a few vallues of u
I am sorry about this mistake
Niels
--
Niels L Ellegaard http://dirac.ruc.dk/~gnalle/