[Maxima] I want to tell maxima (-1)^0.33333333333333=-1, what should i do?

[Xiang Liu]

I am totally new to maxima.

1. How can I get the numerical value of (-5)^(1/3)?

(%i70) (-5)^(1/3),numer;
(%o70) 1.709975946676697*(-1)^0.33333333333333

OR

I want to plot2d for f(x) between (-1,0)
(%i98) f(x);
(%o98)
(sqrt(-16*x^4-16*x^3+20*x^2+12*x+23)/(6*sqrt(3))+(16*x^3-12*x^2-6*x-25)/54)^(1/3)

note: we can draw
sqrt(-16*x^4-16*x^3+20*x^2+12*x+23)/(6*sqrt(3))+(16*x^3-12*x^2-6*x-25)/54
easily.

Thanks in advance
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