All published worksheets from http://sagenb.org
solve(6 - 2*x - 2 - 3 - x, x)
diff(x*csc(x^2), x)
integral(cos(2*x), x)
diff(1/2*sin(2*x), x)
def f(x): 3 - 2*x^2 / 5*x^2 + 100*x f(1000000)