🤓 alert:

Who else here uses the old reverse polish notation () calculators of HP? One of the best is the HP42S - quite expensive on the second hand market. A free alternative is the Free42 app of Thomas Okken: thomasokken.com/free42/

SwissMicros has built an actual calculator, DM42, based on the Free42 software swissmicros.com/product/dm42

Edward Shore has a nice calculator blog, on which he posted a fibonacci program of mine for the Free42 / DM42 , in two versions. edspi31415.blogspot.com/2022/0

On the picture left: the original HP42S calculator, right: the SwissMicros DM42 version.

@markodraisma
The hp42s was my calculator.🖤 ... but it's broken💔. I found an emulation of the hp48s on android 😊

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@Clailou You should also try the free42 android app. It's the hp42s but even better.

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