Re : can't MATHEMATICA simplify simple expressions?
- To: mathgroup at smc.vnet.net
- Subject: [mg51513] Re : [mg51505] can't MATHEMATICA simplify simple expressions?
- From: "Florian Jaccard" <florian.jaccard at eiaj.ch>
- Date: Thu, 21 Oct 2004 22:20:15 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello ! You expect an answer wich is correct only if a real and a>0 ! In[3]:= Simplify [ (a^2)^(3/2),a>0 ] Out[3]= a^3 But if a is, let us say, -I, you expect a wrong answer : In[7]:= ((-I)^2)^(3/2) == (-I)^3 Out[7]= False Regards F.Jaccard -----Message d'origine----- De : Cole Turner [mailto:REMOVEcole.tuner at liwest.at] Envoyé : mercredi, 20. octobre 2004 07:22 À : mathgroup at smc.vnet.net Objet : [mg51505] can't MATHEMATICA simplify simple expressions? if I enter: FullSimplify [ (a^2)^(3/2) ] (in correct MATHEMATICA syntax, the program does not yield the correct result, a^3 ... why is that? thanks! -- Johnny: [plugging back in the runway lights] "Just kidding." ('Airplane!', 1980)