Lagrangian Interpolation for the HP-67 and HP-41C


Hi All,

I posted PDF files that contain Lagrangian interpolation programs for the HP-67 and HP-41C on my web site.. The HP-41C programs come in two versions. The accompanying algorithm pseudo-code explains the difference. The second version performs some of the calculations needed once and stores the intermediate results. When you perform interpolation, the program performs the needed calculations that involve the interpolated value of x. Therefore, you save time when you perform multiple interpolation with the same set of observations.


Edited: 18 Feb 2010, 2:28 p.m.


Thanks Namir!

It was good to meet you at HHC 2009 and I look forward to HHC 2010.

- Bill


Same here. Any word on where and when HHC2010 will take place?


Same here. Any word on where and when HHC2010 will take place?

I haven't seen anything on it, but I'm sure that Richard, Joe, et al are working on it. ;)

Possibly Related Threads...
Thread Author Replies Views Last Post
  hp-67 card reader problem. Marcel Samek 5 1,864 12-09-2013, 09:09 PM
Last Post: Paul Berger (Canada)
  HP-67 charger Marcel Samek 3 1,084 11-22-2013, 10:45 PM
Last Post: Marcel Samek
  request M.E. pac for HP-67/97 wallet cover scan Ignacio Sánchez 0 654 11-06-2013, 09:36 AM
Last Post: Ignacio Sánchez Reig
  HP-67/97 Mechanical engineering PAC cover Ignacio Sánchez 0 600 10-30-2013, 04:35 AM
Last Post: Ignacio Sánchez Reig
  HP 67 clear cases Keith Midson 7 1,636 10-14-2013, 11:05 AM
Last Post: Kiyoshi Akima
  HP-67 keyboard repair davorin 1 737 10-04-2013, 04:09 AM
Last Post: Katie Wasserman
  HP-41c display problem Ignacio Sánchez 6 1,555 09-04-2013, 10:52 AM
Last Post: Ignacio Sánchez Reig
  HP-67 Card Reader Repair Question aj04062 1 890 08-08-2013, 11:15 AM
Last Post: Randy
  HP-50 on Raspberry Pi? The HP-67 come true? Matti Övermark 10 2,084 07-30-2013, 09:40 PM
Last Post: Matti Övermark
  HP 67 problems Manel 1 687 06-11-2013, 09:15 PM
Last Post: BobVA

Forum Jump: