One really useful feature of Google search is its ability to perform calculations, from simple additions and subtractions to conversions and more complex formulae.
Look what happens when you search Google for this formula:
(sqrt(cos(x))*cos(400*x)+sqrt(abs(x))-0.4)*(4-x*x)^0.1
Now, why didn’t we get to draw that in Sixth Year Studies Maths?