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public:calculator:info:dm42_info [24/01/26 08:06 GMT] – [DM42 Program Listings] johnpublic:calculator:info:dm42_info [01/02/26 08:36 GMT] (current) – [Update January 2026] john
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 </code> </code>
  
-==== RTC Error ====+==== 2022 ==== 
  
 ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^ ^Start^Stop^Accumulated Error (s)^Rate Error (s/d)^Comments^
 |28/3/22 |7/11/22 |-5.8|0.0 | -5.8s over period 224 days = -0.03s/d | |28/3/22 |7/11/22 |-5.8|0.0 | -5.8s over period 224 days = -0.03s/d |
 +
 +==== Update January 2026 ====
 +
 +Using my [[..:..:miscellany:watches:watchcheck|python Watchcheck]]
 +
 +^Date Start^Date Check^Delta^Latest Rate Error^Average Rate Error^Comments^
 +|26/01/26|  | -43.0 |  |  | Start Period. Correction -39.1ppm |
 +|26/01/26|27/01/26| -43.2 | -0.3 | -0.3 | After 24 hours |
 +
  
  
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   * Firmware      : [[https://technical.swissmicros.com/dm42/firmware/]]   * Firmware      : [[https://technical.swissmicros.com/dm42/firmware/]]
-  * Documentation : [[https://technical.swissmicros.com/dm42/doc/dm42_user_manual.html|User Manual]]+  * Documentation : [[https://technical.swissmicros.com/dm42/doc/dm42_user_manual.html|Online HTML User Manual]] 
 +  * Documentation : {{ :public:calculator:info:dm42_user_manual.pdf | PDF Manual}}
   * Product Page  : [[https://www.swissmicros.com/product/dm42|DM42]]   * Product Page  : [[https://www.swissmicros.com/product/dm42|DM42]]
  
  
 +===== HP-42S Owner's Manuals =====
 +
 +Download from [[https://literature.hpcalc.org]]
 +
 +  * HP-42S Owners's Manual : [[https://literature.hpcalc.org/community/hp42s-om-en.pdf]]
 +  * HP-42S Programming Examples & Techniques : [[https://literature.hpcalc.org/community/hp42s-prog-en.pdf]]
  
 ===== DM42 Program Listings ===== ===== DM42 Program Listings =====

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