Re: help

*Subject*: [mg2662] Re: help*From*: carolafb at sbox.tu-graz.ac.at (Carola Friederike Berger)*Date*: Sun, 3 Dec 1995 02:54:14 -0500*Approved*: usenet@wri.com*Distribution*: local*Newsgroups*: wri.mathgroup*Organization*: Graz University of Technology, Austria

Dr. Sergio Miguel Terrazas Porras (sterraza at campus.cdj.itesm.mx) wrote: : I have not been able to plot the function x^(1/3) for negative x : Is there a special function for cuberoot? : thanks : : : You can't plot a function which yields imaginary numbers like your function (e.g. (-2)^(1/3) gives (-1)^(1/3)* 2^(1/3) which is approximately 0.629961 + 1.09112 I) with the simple Plot-Routine in Mathematica. You can either plot the real or imaginary part or the absolute value with Plot, or you can try Plot3D. -- Carola Friederike Berger alias carolafb at sbox.tu-graz.ac.at