(41C 32S): n = a^2 + b

[J-F Garnier]

(07-18-2021 05:00 AM)Eddie W. Shore Wrote:  This technique is useful, especially with the HP 32S and HP 32SII. Normally, real numbers take up 9.5 bytes of memory on the HP 32S series. Integers 0 - 100 only consume 1.5 bytes of memory for the original HP 32S and the range is extended to 0 - 254 for the HP 32SII.

I didn't remember that the range was up to 254 for the 32SII. That's perfectly correct of course. Thanks for reminding us.

(07-18-2021 06:17 AM)C.Ret Wrote:  I have not fully understand why this spare memory since, two registers may be more than one.

The 32S/32SII have so little memory that using numeric constants (other than the 0..99 or 0..254) in a program must be avoided. For instance, it is much better to do 12 +/- rather than -12). To enter large constants (e.g. 1000), we have better to do for instance 10 ENTER x^2 * or if speed is not a concern 3 10^x.

Quote:EDIT:
In this sunny sunday mornig, I was posting this message when by rereading it, a shorter and simpliest version pop up in my awaking brain that use a MOD instruction :

Code:

01 LBL "SQYX2"
02 ENTER^  SQRT  INT  MOD  LSTX
06 END

Unfortunately, the 32S/32SII lack the MOD function.

J-F