DM42 and labels

[rprosperi]

Wow, thanks to all 3 of you for more comments. I had no idea things were really this different, I simply had been playing with a 34C the day Sylvain's note was posted and knew I had seen different behavior.

It's interesting to see the 'blood lines' of the machines, likely pointing to design/code re-use on various projects.

Most interesting (excepting the 65 of course) is that the 33C and 34C behave differently. It seems to imply the 34C was not just an improved 33E, but probably was a fresh start (or major redesign at least) to accommodate the new features (integrate, solve, etc.) introduced in that model.

For the 65, thanks for the pointer Didier. I know I've read that complete manual, more than once, and yet this interesting little section did not stick. It's somewhat rare to see in these manuals such a firm "rule" explaining how things should be done, but with no real explanation for why, or consequences of not following the rules.

Who knew this could be interesting?

Mike summed it up best "Yet another example for the pleasure of playing with old calculator models."

Thanks!