newRPL - build 1255 released! [updated to 1299]

[Nigel (UK)]

(06-03-2019 12:13 PM)Claudio L. Wrote:  

(06-03-2019 09:32 AM)Nigel (UK) Wrote:  Two points:

• Entering '(0,1)' onto the stack and then pressing EVAL returns the list { '0' '1' } rather than the complex number (0,1). This may or may not be by design, but it surprised me.
• Entering 'sqrt(-2)' onto the stack and then pressing EVAL crashes both the physical calculator and the PC emulator.
  

Both of these operations are carried out with the complex results flag checked.

I haven't used newRPL for a while and it is wonderful to see how much progress has been made. George R R Martin could learn a thing or two from Claudio!

Nigel (UK)

I updated the unofficial ROMs with a few bugfixes, I believe the crash you mentioned above should be resolved.
Also, complex numbers can't be expressed with parenthesis in a symbolic. You basically called a function without any name or command, therefore the list of arguments was returned as it was on the stack. This is part of the not-so-new support for multivalued functions in a symbolic. You can return multiple results and will be packed into a list.

Edit: Just for completeness, to express a symbolic you need to use a+b*i where the complex i is not the letter 'i' but the one on Alpha-LS-7.

Thanks for the quick reply. I now understand how to represent complex numbers in symbolics.

Are the "unofficial" ROMs the "development" ROMs linked to on the first page? If so, the 'sqrt(-2)' EVAL crash persists in the ROM I have just downloaded and installed.

Nigel (UK)