Re: Plotting with octave

[Alfredo Tomasini]

Eric Bouyoux wrote:

> I would like to generate a plot of the function toto = x^2
>
> I wrote the following program :
>
> function y = toto (x)
> y = x^2;
> endfunction
>
> x = (0:1:20)';
>
> gplot toto(x)  with linespoints
>
> I get the following error message :
>
> error: for A^b, A must be square
> error: evaluating assignment expression near line 2, column 3
> error: called from `toto'
>
> Is anybody able to help me to understand how the gplot function works.
>
> Thank you.
>
> Regards.
>
> Eric Bouyoux

Try

x = 0:1:20;
y= x..^2;
data = [x',y']
gplot data u 1:2

In the manual there is an example, return the fanction values in term of
vector.




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