Meh… my RPN calculators never had a C button (that was used like that) either. https://www.theatlantic.com/technology/archive/2024/10/iphone-broke-its-calculator/680271/ #hp12c #hp11c #hp15c #hp16c

Spotted on my city's website: my beloved 42-year-old pocket calculator. Still classic. <3
#hp11c

One of my most prized possessions. I purchased this Hewlett-Packard 11C scientific calculator in 1984, between my freshman and sophomore years. I used it constantly through college and grad school, and still pick it up several times a week. I have replaced the batteries ONCE in 38 years. They don't make them like this anymore.
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#hp #hp11c #vintage #calculator #RPNforever