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The HP Knowledge Base
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Welcome to the HP Knowledge Base. Here, you'll find a collection of articles about HP Calculators, especially the 48 and 49 series.
If you have a piece of information regarding those calculators that you think is going to be useful to other users, you are welcome to submit it to the HP Knowledge Base.
You can also add notes to exiting articles to complement it.
Both features above (submitting articles and adding notes) require you to create an account and then log in. Creating an account is free.
If you just want to view the articles, you don't need an account. But you are welcome to create one should you want later to add a note or submit an article.
To start reading the articles, you have two options: you can browse the categories or search for a specific topic.
Be sure also to check the tutorials section, especially if you want to learn to program the HP48 and 49 calculators.
The second edition of the free on-line book "Programming in System RPL", written by me and Carsten Dominik has been released. Click here for more information and downloads.
This site is still in an experimental state. I plan to add some more features soon. I would really like to hear suggestions and comments about the site.