How hard can it be to write a simple four-function calculator program? After all, computers are good at math, and making a calculator isn’t exactly blazing a new trail, right? But [Chad Nauseam] will ...

Here's how Calculator on my new rMBP (10.9) works. Start with 987654321. Doing 1/x twice yields 987654320.98765432098765. That's not great precision for 2014; my iPhone does it correctly. With the ...