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Thomas, do you know why these explanations don't show up DM42HELP.HTM? The DM42HELP.HTM file is maintained by SwissMicros, not by me. I assume they just didn't think to update it to reflect these flag changes, most of which are fairly recent. 2017-03-11: release 1.5.14 -- flag 31 2019-04-07: releas...

At the same time I attached a reference OFFIMAGE of the flags. The DM42 (and Free42) uses a few flags that are unused on the real HP-42S: Flags 31 & 67: date format mode: 67 clear, 31 clear: MDY mode (default) 67 clear, 31 set: DMY mode 67 set: YMD mode Flag 64: shift This flag indicates whether or...

Sure, back in the days before everything was built out of standard-sized parts.

But hey, if you really want to believe in a narrative, you'll do it no matter what, so never mind...

I don't think Italy is full of millions of houses that were built out of lumber cut to Roman-era units.

C'mon.

According to this, he was interested in doing so, but it must not have been a very high priority:

https://www.npr.org/sections/thetwo-way ... ric-system

In fairness to the United States, it should be recognized that it is a lot easier to adopt a standard where there wasn't one before, than it is to replace an existing standard with a new one. The Imperial Units were well-established long before the metric system was introduced, and switching to metr...

You can also use the SIZE function in the MODES menu; it will set the size of REGS to the desired number, and create REGS if it doesn't already exist. To set SIZE 25, type

[Shift] [+/-] [▼] [Σ+] [2] [5] [ENTER]

When in rad mode and asking for sin(pi) i have -1.158E-34. Is this because the constant for pi is limited to certain number of digits? Yes. sin(x-pi) = -sin(x), and when x approaches zero, sin(x) = x, so sin(x-pi) = -x. In bid128 (the 34-digit floating-point format used by Free42 Decimal and the DM...

To provide only one starting value and ignore any previous values, enter the new starting value twice: 100 [X] 100 [X] [X]. I keep forgetting how the menu decides whether pressing [X] means STO "X" or SOLVE "X". You might think this is done using the number entry flag, but that is not the case. Rat...

There's nothing in SOLVE to keep it trying only integers if the initial guesses are integers. But it sounds like what you're observing has a different reason. SOLVE actually uses two starting values, not one. If you provide only one, the other one will be whatever was left from the last time it ran,...