New firmware for the Swissmicros DM15L

[Johnp_g]

jebedeo,

This is great!

Aside from the STO/RCL issue - which is a personal choice and I have no problem with whatever method you choose.

I'm really enjoying the Complex number handling!

I just discovered that with a complex number on the stack that:

f (i) -> complex conjugate
f I -> splits the complex number out to Re and Im on y and x stack
f Re<>Im swaps the Real and Imaginary parts of the complex number

I note that in complex number mode that ->R and ->P operate as a way of :

1) changing a complex number already on the stack between Rect. and Polar
2) alter how a new complex number is presented, eg. after pressing g ->P it follows that all new complex numbers are created as Polar (and vice versa).

This is very fine!

However I found that for "normal" real numbers in x and y that ->P and ->R don't function as in the HP15C - no conversion from x & y to Arg / Angle takes place.

But confusingly. after trying a conversion to Polar with g ->P (which silently fails to do anything) still means that any new complex numbers be created in Polar format.

Perhaps a new annunciator could be added to indicate R or P to make it obvious which mode new complex numbers will appear as?

A second "bug" is with the ->H.MS and ->HR functionality.

Firstly H.MS and HR only operate after ENTER has added the number to the stack - which duplicates it into Y and raises the stack - not what you necessarily want.

Secondly the conversions don't calculate correctly

1.3030 (1 hour, 30 minutes, 30 seconds) g -> HR gives 1.50833 which is correct
1.50833 (1.50833 hours) f ->H.MS gives 1.3050 (1 hour 30 minutes 50 seconds) which is incorrect

Looks like the handling of the seconds is wrong - and we have "50" (for 0.5 minutes?) where there should be 30 for 30 seconds.

Various other test numbers produce similar effects.

Otherwise I'm very impressed and very happy to use this new firmware!

Well done!

John