223.sagews

circle((0,0), 1, rgbcolor=(1,1,0))

x = var('x')

parametric_plot((cos(x),sin(x)^3),0,2*pi,rgbcolor=hue(0.6))

u, v = var('u,v')

fx = u*v

fy = u

fz = v^2

parametric_plot3d([fx, fy, fz], (u, -1, 1), (v, -1, 1),
...   frame=False, color="yellow")

line 5 ... frame=False, color="yellow") ^ SyntaxError: invalid syntax

parametric_plot3d([fx, fy, fz], (u, -1, 1), (v, -1, 1),frame=False, color="yellow")