WIRED; It's Past Time for You To Ditch That Fancy Scientific Calculator

[ttw]

The programmable calculator is the intermediate step between my pen and paper computation of a few formulas and the large scale Fortran numerical computation that results. Each step of at least one case is worked on the calculator so that I understand the numerical details of every expression. The I can run a few billion iterations a look at some output. Without the calculator part, I'd have no idea if my program were delivering reasonable results.

On the other hand, my HP50g is much more portable than my PC.