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| | Little Comparison DM15L vs. HP15 CE (hpmuseum.org) | | 2 points by wslh on Sept 12, 2024 | past | |
| | HP-12C (hpmuseum.org) | | 2 points by ustad on Aug 19, 2024 | past | |
| | New: HP 15C Collectors Edition (hpmuseum.org) | | 3 points by trasz4 on May 2, 2023 | past | |
| | “Lonesome 8” Math Puzzle (2018) (hpmuseum.org) | | 1 point by elliekelly on July 19, 2021 | past | |
| | What Is RPN? Why Did/Does HP Use RPN? Learning RPN (1999) (hpmuseum.org) | | 115 points by susam on March 6, 2021 | past | 117 comments | |
| | The Museum of HP Calculators (hpmuseum.org) | | 2 points by susam on March 6, 2021 | past | 1 comment | |
| | The Museum of HP Calculators: What Is RPN? Why Did/Does HP Use RPN? Learning RPN (hpmuseum.org) | | 2 points by susam on Dec 30, 2020 | past | |
| | The Museum of HP Calculators (hpmuseum.org) | | 2 points by susam on Dec 30, 2020 | past | 1 comment | |
| | The HP Garage (2009) (hpmuseum.org) | | 60 points by swatson741 on Nov 3, 2020 | past | 19 comments | |
| | Turing Machine for the HP-67/97 (2001) (hpmuseum.org) | | 1 point by bryanrasmussen on April 21, 2017 | past | |
| | HP Calculator Programming in RPL (hpmuseum.org) | | 2 points by rbc on Feb 17, 2009 | past | 2 comments | |
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