Plotting with octave

[Eric Bouyoux]

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

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