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Re: how to get an assignment from a rule ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29328] Re: [mg29315] how to get an assignment from a rule ?
  • From: Andrzej Kozlowski <andrzej at tuins.ac.jp>
  • Date: Thu, 14 Jun 2001 02:27:10 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

on 01.6.13 4:10 PM, Guido Carlet at carlet at sissa.it wrote:

> Anybody knows how to do this in Mathematica ?

I am sure lots of people do.
> 
> I have a list of rules:
> 
> {a->b,  c->d}
> 
> and  I want to get the corresponding  assignments:
> 
> a = b
> 
> c = d
> 
> Is there a command in Mathematica to do this ?

One simple way:

In[1]:=
Set@@@{a->b,  c->d}

Out[1]=
{b,d}

Of course the assignments already got evaluated. Indeed:

In[2]:=
{a,c}

Out[2]=
{b,d}



-- 
Andrzej Kozlowski
Toyama International University
JAPAN

http://platon.c.u-tokyo.ac.jp/andrzej/
http://sigma.tuins.ac.jp/~andrzej/



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