MathGroup Archive 2003

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

Search the Archive

Re: a first-time user question


Hi,

Needs["Miscellaneous`RealOnly`"]
Plot[x^(2/3), {x, -1, 0}]

works as you expect.

Regards
  Jens


Ye Hu wrote:
> 
> I have a simple (supposedly) question...
> 
> I used the following command to draw a plot, but Mathematica could not run
> properly.
> 
> Plot[x^(2/3),{x,-1,0}]
> 
> I know the problem is about calculating (-1)^(1/3) in mathematica. Although
> (-1)^(1/3) = -1,
> mathematica tries to calculate it numerically and gives complex results
> 0.5+0.8i
> How to solve this problem and restrict the solution to be only real numbers?
> 
> Thanks very much.


  • Prev by Date: Mathematica and LaTeX
  • Next by Date: Re: a first-time user question
  • Previous by thread: Re: Mathematica and LaTeX
  • Next by thread: Re: a first-time user question