NEW: HP 15C Collectors Edition

[J-F Garnier]

(08-05-2023 01:12 AM)Michael de Estrada Wrote:  Also, there is no point in having more than 99 allocated registers, since AFAIK register numbers consist of only two digits.

(08-05-2023 01:24 AM)Gene Wrote:  Data registers - correct. An Error 10 results if you try 100 DIM (i).

However, the 15C CE can hold several large matrices using that data space just not “data memories”

The limitations of extended versions (w/ more the 99 registers) are already known for the SwissMicros DM15L, but having them all in one place here may be convenient:

Major limitations:
- inverting a matrix, or calculating the determinant, or solving a system larger than 8x8 gives wrong results, or may crash the machine.
- it is not recommended to enter more than 999 program steps (no crash but possible weird effects after step 999). Especially step 1000 is displayed as " 000-000000"
- the GTO CHS sequence to reach a particular program step can't go beyond 999.

Minor limitations that just give an error message:
- you can't allocate more than 99 storage registers,
- you can't create a matrix with more than 99 elements in a row or column:
i.e. you can't do 120 ENTER 1 DIM A
but you can do 60 ENTER 2 DIM A to get a matrix with 120 elements.

If other limitations are known, please share !

J-F