> How can I do this?

>

> x = sin(-b)+b, y=2-cos(-b), 5≤ b≤ 6pi

Have in mind that octave is not the ideal tool for symbolic studies

(you could check if the symbolic package meets your needs)

If you do not care about sampling, you can plot in the following way

nT = 100; # number of points

b = linspace (5, 6*pi, nT).';

x = b - sin (b);

y = 2 - cos (b);

plot(x,y,'o-');

axis image

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