{"id":1845,"date":"2018-02-09T12:26:06","date_gmt":"2018-02-09T12:26:06","guid":{"rendered":"http:\/\/www.sydneysmith.com\/wordpress\/?page_id=1845"},"modified":"2023-11-02T10:40:52","modified_gmt":"2023-11-02T10:40:52","slug":"hp29-main","status":"publish","type":"page","link":"https:\/\/www.sydneysmith.com\/wordpress\/hp29-main\/","title":{"rendered":"The HP-29C Calculator"},"content":{"rendered":"

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What is it?<\/h2>\n

In short, a Hewlett-Packard designed and built programmable scientific calculator.<\/p>\n

It had 98 program steps and 30 memories. It wasn’t card-programmable, which was a pity at the time, but it did have “Continuous Memory” so it remembered the program that you keyed in – even after you switched it off.<\/p>\n

See the hpmuseum page<\/a> for more details. There is also a Wikipedia page for the HP-29<\/a>.<\/p>\n

Where do I get one?<\/h2>\n

They were discontinued in 1979 so you can’t buy one from the manufacturer anymore. They do crop up on eBay so that’s a good starting place. However, in many cases it is easier to get a HP-29 emulator<\/a>.<\/p>\n

How do I use it?<\/h2>\n

The Sliderule Museum has a copy of the HP-29 Owners Handbook<\/a>.
\nAt some point I’ll add some HP-29 Programs.<\/p>\n

There is also:<\/p>\n