1+ 3
3-2
2*3
6/2
2^3
2**3
(2**2+ 3)*8
parametric_plot([cos(x) + 2*cos(x/4), sin(x) - 2*sin(x/4)], (x,0,8*pi), color='green', thickness=3, fill = True)
A = matrix(2, 3, [1,pi,3, e,5,6])
show(A)
show(graphs.PetersenGraph())