When average Americans confront the complicated problem of how much to save for retirement, they often use so-called “rules of thumb,” or greatly-simplified approaches, to figure out how much to save ...

We’ve been talking a lot about retirement calculators lately, but how do you pick a good one? A Web search for “retirement calculator” will bring you all kinds of free, online tools. But not all of ...

Every semester before classes start, I get emails and phone calls from new students or their parents wanting to know about calculators. What calculator is required for your classes? What calculator ...

Pictured above is the HP-35, Hewlett-Packard’s first pocket calculator and the world’s first scientific pocket calculator. The HP-35 was available from 1972 to 1975, and retailed then for $395 (more ...