[Nifster]

Any calculator will not elucidate differential equations, calculus, Greens theorem, or any other bit of mathematics.

Calculators allow you to number crunch

[RoosterRedux]

I haven't used a calculator since the advent of MS Excel.

In Excel, you can design a missile and its trajectory to Mars if you have the knowledge.

I am studying VBA for Excel and am amazed at its power.

Kaboom!

I majored/specialized in mathematical modeling and find Excel capable of all I need.

If there is something better, please advise us all.