1505.sagews

g(x)=sin(x)*3*x^2

g

x |--> 3*x^2*sin(x)

Dg(x)=g.derivative()

Dg

x |--> 3*x^2*cos(x) + 6*x*sin(x)

p1=plot(g(x),0,2)

p2=plot(Dg(x),0,2)

show(p1+p2)