[y=x]
setRange(-5,5,-5,5);axis('full', 1, 1, 0, 0);style.stroke = 'red';plot('x');
[y=x^2]
setRange(-5,5,-5,5);axis('full', 1, 1, 0, 0);style.stroke = 'red';plot('x^2');
[y=sin(x)]
setRange(-5,5,-5,5);axis('full', 1, 1, 0, 0);style.stroke = 'red';plot('sin(x)');