Re: ReplaceRepeated in case of non ordered expressions
- To: mathgroup at smc.vnet.net
- Subject: [mg108137] Re: ReplaceRepeated in case of non ordered expressions
- From: dh <dh at metrohm.com>
- Date: Tue, 9 Mar 2010 06:21:24 -0500 (EST)
- References: <hmvu9c$3nb$1@smc.vnet.net>
Hi,
ReplaceRepeated (not ReplaceAll) can do the job:
a + b //. {y -> c + d, a -> z + t, b -> y}
Daniel
On 07.03.2010 11:14, Maria Davis wrote:
> Hi;
> I have such equations:
> x=a+b
> y=c+d
> a=z+t
> b=y
>
> I want to use mathematica in order to simplify x and obtain: x=z+t+c
> +d
> I have used: [x,Listofequations]
> This function is available if I have equations written in the
> following order:
> x=a+b
> a=z+t
> b=y
> y=c+d
>
> but in the case of non ordered equations, it doesn't work. Further, I
> must use equations in the order given.
> Please can you help me.
> Thanks
>
--
Daniel Huber
Metrohm Ltd.
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Tel. +41 71 353 8585, Fax +41 71 353 8907
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