Adding equations
- To: mathgroup at smc.vnet.net
- Subject: [mg14342] Adding equations
- From: Lawrence Walker <lwalker701 at earthlink.net>
- Date: Thu, 15 Oct 1998 00:28:46 -0400
- Organization: Morgan State University: COMSARE
- Sender: owner-wri-mathgroup at wolfram.com
Group:
I've been trying to add two equations as follows:
In[4]:=
a==b;
In[5]:=
c==d;
In[6]:=
%4+%5
Out[6]=
(a==b)+(c==d)
The result I was looking for is (a+c)==(b+d). The following works but it
seems clumsy. In[7]:=
%4[[1]]+%5[[1]]==%4[[2]]+%5[[2]] Out[7]=
a+c==b+d
Is there a way to elegantly add (sub, mult, div) two equations? Also is
there an elegant way to add (sub, mult, div) an expression to both
sides of an equation?
Lawrence Walker
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