For x>0 and x< -1, the result is real:
makelist(x*sqrt(x)/sqrt(1+x),x,[-1.5,-.5,.5,1.5]);
(%o69) [- 2.598076211353316, - 0.5 %i, 0.28867513459481,
1.161895003862225]
For x>-1 and x< 0, the result is imaginary, and is not plotted, so there is
a gap in the plot.
Is that what you are referring to?
-s
PS For reports like this, please include the version number of Maxima, the
exact command you used to generate the result you think is incorrect, and
why you think it is incorrect.
On Sun, Jan 1, 2012 at 09:14, Luigi Marino <luigi_marino2 at alice.it> wrote:
> **
> Maxima for a function with rational exponent
> plots not real parts.
>
> Example in the function:
>
> x*sqrt(x)/sqrt(1+x)
> or x^(3/2)/sqrt(1+x)
>
> the left part of the plot
> is not real ( x>0 for sqrt).
>
> Best wishes and Happy New Year
> Luigi Marino
>
>
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