implicit equations
- To: mathgroup at smc.vnet.net
- Subject: [mg3828] implicit equations
- From: hoerz at ind.uni-stuttgart.de (Stefan Hoerz)
- Date: Mon, 29 Apr 1996 00:29:50 -0400
- Organization: University of Stuttgart, IND (Germany)
- Sender: owner-wri-mathgroup at wolfram.com
Hi !
I want to solve an implicit equation in Mathematica:
The dependence of x and y is given with:
z=f[x,y]
and I want to solve
x=g[y,z] with z=z0.
but I can't find the explicit function g.
The only possibility I found in the mathematica Book, was to use the ContourPlot.
But I need the values too, not only the plot.
I experienced with the following solution:
X = NSolve[ f[x,y] == z0, x]
and for more than one value:
X = Table[ NSolve[ f[x,y] == z0, x], {x, xmin, xmax}]
I'm a beginner in Mathematica, so I'm not shure, if there is a better and faster
possibility.
Stefan Hoerz
email: hoerz at ind.uni-stuttgart.de
Would you also send me an email just to make shue I don't miss the answer
Thanks
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