Re: Replacement?

*To*: MATHGROUP at yoda.physics.unc.edu*Subject*: Re: Replacement?*From*: GER.XSE0027 at applelink.apple.com (Germany - RL Jakschewitz,Nrnbrg,IDV)*Date*: 26 Apr 93 22:20 GMT

in message <9304260436.AA28649 at yoda.physics.unc.edu> francis at osiris.ucsd.edu writes > I simply want Mma to replace N q with Q everywhere mathematically > possible, so that N^2 q^2 would be replaced by Q^2, > N^3 q^2 by N Q^2 and so on. Handing on Arthur L. Rubin's (a_rubin at dsg4.dse.beckman.com) answer to an analogous question posted on news.sci.math.symbolic a couple of weeks ago: alr: In general, you might try using the AlgebraicRules reductions, remembering alr: to include all variables in the reduction; alr: alr: R = AlgebraicRules[N q == Q,{N, q,...}] thus: In[1]:= N^2 q^2 /. R Out[1]= Q^2 In[2]:= N^5 q^3 /. R Out[2]= N^2 Q^3 Roland Jakschewitz ------------------------------------------------------------------------ RL Jakschewitz Geuderstr. 7 AppleLink: GER.XSE0027 D-8500 NUERNBERG 20 Tel: +49 - 911 - 26 13 13 Germany UUCP: rlj-nbg at infohh.rmi.de ------------------------------------------------------------------------