DM42.

[Didier Lachieze]

Here are some documents you can use with the DM42:

• [PDF]] HP 42S manuals from the HPMUSEUM USB stick :
  • HP-42S Owner's Handbook
  • HP-42S Manuel d'utilisation (French)
  • HP-42S Programming Examples & Techniques
    
• [Printed] HP-42S Quick Reference Guide available HERE from the original author
• [On-line + PDF] DM42 User Manual– covers DM42 specific topics, it doesn't replace but complements the HP-42S manuals
• [On-line + On-calc] DM42 Help (Quick reference guide):
  • English
  • French
    

There are a few original HP-42S owners manuals for sale on eBay but expect to pay a huge amount for any of them.