Thanks Valérie 👍, just leaving the link here as reference for others to find it faster

learnyouahaskell.com/chapters

What is your machine?

Wondering, how do you do the button holes? Do you have a button holer attachement or is there a manual way (using a vintage sewing machine without attachement I mean)? Thanks in advance.

BTW, here's one of my 2 Singer 😉

There's also a gem, the MK-90 portable BASIC computer! The screen is gigantic, and it's compatible with the PDP-11! I which I would find one (with a reasonable/cheap price)

elektronika.su/en/calculato...

RPN for the win!

It sure does! I post a lot 😂 (not all of them on the picture)

Try to find an MK-52, it has permanent memory (with an onboard eeprom). Here's a picture of mine. It usually comes with the user manual and even schematics.
They sell it on Ebay from Ukraine 🇺🇦.

Latest acquisition for my collection: this HP-15C, top of the HP Voyager family, from USA 🇺🇸 1986, complete with user manual, leaflet and original box.

IMHO, this original edition is the only Collector Edition! 😍

#hpcalculator #RPN #vintagecalculator