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1. How solve this trigo system ? (10 Replies)
2. Weight (Trivial) (6 Replies)
3. HP97 memory fault? (4 Replies)
4. Small challenge (8 Replies)
5. Summing lists in directory structure (17 Replies)
6. HP 95LX: Derive Maths Programme (14 Replies)
7. HP50 Grayscale programming (Updated) (11 Replies)
8. HP33E Question: Battery Pack (6 Replies)
9. OEIS A228297: Need Help to Find Algorithm (14 Replies)
10. HP-41CV Battery Problems (4 Replies)
11. What happened to HP Users' Libary in Geneva? (2 Replies)
12. Voyager Series: Which is better, USA or Brazil? (6 Replies)
13. Last known HP 48G+ GX and 15C serial number (2 Replies)
14. Voyager keypad construction (2 Replies)
15. Help ID a vintage HP calculator part (5 Replies)
16. Allschwil Meeting 2016 (70 Replies)
17. Is anyone else having trouble posting? (17 Replies)
18. HP41CL Question (8 Replies)
19. interchangeble parts of the spice serie (1 Reply)
20. Vintage Calculator Repairs (12 Replies)
21. HP Xpander (29 Replies)
22. Most Ambitious HP-65 Program (1 Reply)
23. Classic battery door latch 3d model? (63 Replies)
24. Blue 50g (12 Replies)
25. 9815/9825 Capstan (17 Replies)
26. BASIC PLUS for Series 200/300 Computers (6 Replies)
27. HP 38G Menu Clock Works on 40gs? (0 Replies)
28. HP-41 rechargable battery (2 Replies)
29. Approximation of pi based on sqrt(10) (22 Replies)
30. Math Notation (5 Replies)