>
> log(x)
>
> maxima plots the real part of the equation.
>
> Is there any way to make maxima plot only the 'real' (i.e. where the
> imaginary part is equal to zero) data (using points)?
> Another interesting plot is this:
>
> plot2d([sqrt(x-2) + sqrt(x-4)], [x,-5,5])
>
> or
>
> plot2d([sqrt(x-2) + sqrt(x-4)], [x,-5,5],[gnuplot_curve_styles,["with
> points"]])
>
> Any hint?
>
Ciao Marco,
>From a real-domain (I think this is the right domain for secondary
school students) point of view,
Dom(log(x)) = (0, inf)
and
Dom(sqrt(x-2) + sqrt(x-4)) = [4, inf)
It is non sense to give the independent variable x values outside this
ranges. If you write log(-1) you are entering in another maths level.
Mario
--
Mario Rodriguez Riotorto
www.biomates.net