Re: extracting lhs or rhs of equations
- To: mathgroup at smc.vnet.net
- Subject: [mg16877] Re: extracting lhs or rhs of equations
- From: fritza at ripco.com (Fritz Anderson)
- Date: Mon, 5 Apr 1999 02:24:19 -0400
- Organization: Ripco Communications Inc.
- References: <7e1bmf$ba2@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <7e1bmf$ba2 at smc.vnet.net>, David P. Johnson <johnson at ae.msstate.edu> wrote: > Let's say I have an expression like: > > In[1]:= eq1= Sin[x] == x; > > Is there a way to get just the left-hand side or right-hand side of the > equation? Something like: > > In[2]:= LHS[eq1] > Out[2]:= Sin[x] Try: lhs[ Equal[left_, right_] ] := left The definition will get you some spelling warnings, but those are OK. -- Fritz Anderson, Chicago Illinois fritza at ripco, a commercial site