3503.sagews

c = circle((1,1), 2) 
show(c)

c = circle((0,0), 1, rgbcolor=(0,1,0)) 
show(c,aspect_ratio=1) 
show(c,aspect_ratio=1, axes=false)

c = circle((-0.5,0), 0.5, rgbcolor=(1,0,0), fill=True) 
d = circle((0.5,0), 0.5, rgbcolor=(0,0,1)) 
show(c+d)

d = plot(x^3, (x,-2,4)) 
show(d)

f = plot(e^((-1/2)*x)*cos(2*pi*x), (x,0,6), rgbcolor=(0,0,1)) 
g = plot(e^((-1/2)*x), (x,0,6), rgbcolor=(1,2,0)) 
show(f+g)