plotting two parametric functions in same figure

I was trying to plot a parametric function, and its inverse, like this:

   t= linspace (-30, +30);
    x= t;
    y= (t.^5) + t + 1;
    plot(x,y)
    
    hold on
   % t= linspace (-30, +30);    <-- no difference
    xx= (t.^5) + t + 1;
    yy= t;
    plot(xx,yy) 
    

but this gives an empty plot, just showing axes with a far larger range than -30:30

what would I be doing wrong?

regards,D.

Answer 1

[Danny Van Elsen]

ah, yes, I see.

adding

ylim([-10 10])

xlim([-10 10])

gives other results

thanks for your patience there...

[Star Strider]

You never mentioned that you just wanted to limit the axes ranges.

Answer 2

[Star Strider]

You are not doing anything wrong, you are simply misinterpreting the results. The first function would plot with ‘t’ on the x-axis, going from (-30,30). The second function does the reverse of this, and so the plot adapts to the largest range on both axes, going from to .

(Also, the plot is not empty when I plot it.)

[Star Strider]

Danny Van Elsen‘s Answer moved here —

thank you for your response!

but my output is consistently empty:

I get the expected result when entering either of the two functions alone, but nothing when entering both?

regards, D.

[Star Strider]

My pleasure!

It is not empty. It shows the two functions crossing each other. The lines are not the plot axes. The blue line is the plot of (x,y), and the red line is the plot of (xx,yy).