MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: can't MATHEMATICA simplify simple expressions?


In[12] := Simplify[(a^2)^(3/2), Element[a, Reals]]


Out[12] = Abs[a]^3



In[10] := Simplify[(a^2)^(3/2), Element[a, Reals] && a >= 0]


Out[10] = a^3



The correct result is a^3 only when a is real and a>=0

jean pellegri



"Cole Turner" <REMOVEcole.tuner at liwest.at> a écrit dans le message de
news:cl4tg0$8g7$1 at smc.vnet.net...
> 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)
>



  • Prev by Date: Re: can't MATHEMATICA simplify simple expressions?
  • Next by Date: Re: can't MATHEMATICA simplify simple expressions?
  • Previous by thread: Re: can't MATHEMATICA simplify simple expressions?
  • Next by thread: Re: can't MATHEMATICA simplify simple expressions?