3634.sagews

a=plot(e^(-1/2*x)*cos(2*pi*x),(x,0,6),rgbcolor=(1,0,0),legend_label='(e^((-1/2)*x))*cos(2*pi*x)')
b=plot(e^(-1/2*x),(x,0,6),legend_label='(e^((-1/2)*x))')
c=a+b
c.axes_labels(['x', 'f(x)'])
c.axes_label_color((0,1,0))
c.set_legend_options(shadow=true)
c.set_legend_options(loc=4)
show(c)

f = (x^3+19)
find_maximum_on_interval(f, 2,7)

(361.999980366, 6.9999998664326686)

a = animate([circle((6,i+1), 3, hue=i/20) for i in srange(2,6,0.5)],
xmin=0,ymin=0,xmax=10,ymax=10,figsize=[3,3])
a.show()