My HP-15C

It’s that time of year again, tax time, which for me runs from the beginning of the year right up to tax time. And that’s when I dust off my trusty HP-15C scientific calculator, which among other nifty features can handle complex numbers, although really I just use it total up my app store sales.

This thing must be about 35 years old, as it was discontinued in 1989, so I must have purchased it in college or right after. I have a vague memory of losing my first calculator and then buying this one, maybe during my first job at Texas Instruments, but then wouldn’t I have purchased a TI calculator?

In any case, it’s nice to have real buttons.