Re: Q: lefthand/right hand side of equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg26909] Re: Q: lefthand/right hand side of equation*From*: Brian Higgins <bghiggins at ucdavis.edu>*Date*: Fri, 26 Jan 2001 23:29:51 -0500 (EST)*References*: <94r6qo$id2@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Robert, Here are some possibilities: Use the Part function LHS = eqn[[1, 1]] LHS = eqn[[1, 2]] Use a replacement rule LHS = First[eqn /. y_ == z_ -> y] RHS = First[eqn /. y_ == z_ -> z] Cheers, Brian In article <94r6qo$id2 at smc.vnet.net>, Robert <robert.schuerhuber at gmx.at> wrote: > hello! > maybe a rather simple question: > > if i have an equation, how can i get the left/right hand side? > > e.g. > > eqn={a+b==c+d}; > > i'd like to get something like: > > l=a+b > r=c+d > > thanks, > > robert > > Sent via Deja.com http://www.deja.com/