Re: DSolve bug
- To: mathgroup at smc.vnet.net
- Subject: [mg97804] Re: [mg97768] DSolve bug
- From: DrMajorBob <btreat1 at austin.rr.com>
- Date: Sun, 22 Mar 2009 05:47:31 -0500 (EST)
- References: <200903211016.FAA14626@smc.vnet.net>
- Reply-to: drmajorbob at bigfoot.com
The two answers are equivalent... just different ways of saying the same
thing.
That is, any function f[x_,y_] can be reframed as f[x_][y_]:=f[x,y].
And vice versa.
Bobby
On Sat, 21 Mar 2009 05:16:25 -0500, Sotirios Bonanos
<sbonano at inp.demokritos.gr> wrote:
> Hello,
>
> I have encountered the following bug in DSolve:
>
> DSolve[D[F[x, y, z], x, y] == 0, F[x, y, z], {x, y, z}]
>
> gives {{F[x, y, z] -> C[1][z][x] + C[2][z][y]}}
>
> instead of {{F[x, y, z] -> C[1][x, z] + C[2][y, z]}}
>
> I don't know if this has been fixed in Mathematica 7, but it is present
> in versions 5 and 6.
>
> S. Bonanos
> http://www.inp.demokritos.gr/~sbonano/
>
>
--
DrMajorBob at bigfoot.com
- References:
- DSolve bug
- From: Sotirios Bonanos <sbonano@inp.demokritos.gr>
- DSolve bug