1840.sagews

plot(x*sin(1/x^2+1))

plot(x^2*tan(x^2+x+1))

integral(x^6+5*x^4+2*x^3+x+1)

1/7*x^7 + x^5 + 1/2*x^4 + 1/2*x^2 + x

diff(x^6+5*x^4+2*x^3+x+1)

6*x^5 + 20*x^3 + 6*x^2 + 1

plot(x^4*sin(x^3+x^2+x+1))