Re: [Gnuplot-info] sqrt(x)+sqrt(y)=1 graph

[Hans-Bernhard B. <br...@ph...>]

Jorge Barros de Abreu wrote:

> I make changes in your answer and using the gnuplot commands below the 
> expected result is a parabola like "y=x**2" but with parabola center axis the 
> line "y=x". The showed parabola is not perfectly simmetrical. 

Of course it's not --- there's nothing for it to be symmetric with. 
That plot shows only one half of a parabola, and it's not actually a 
parabola, either.  Anyhow, the implicit equation giving the parabola 
y=x**2,rotated by 45 degrees is not sqrt(x)+sqrt(y)=1.  The two are a 
bit similar, but not the same.

> I am using gnuplot 4.0
> *************
> set view map
> set contour base
> set cntrparam levels discrete 0
> set size square
> unset surface
> set isosamples 30

Since you're not actually doing an implicit plot, none of the above does 
you any good.  "set view map" tends to distort things if you're not 
actually using 'splot'.  And there's not much point going to parametric 
mode if you're only going to plot one curve, and x(t)==t