New HP 15c CE speed tests

[Gene]

Some HP 15c CE speed test results:

1) N-Queens problem
https://www.hpmuseum.org/cgi-sys/cgiwrap...i?read=700

15C - 4750 seconds

DM-15 - not sure which one - 195 seconds

15C LE - 28 seconds

15C CE - 25.5 seconds

So on this test, the CE is 186 X faster than the original 15C and perhaps 5-10% faster than the 15c LE (hard to know if the 28 seconds has any rounding in it).


2) Math and trig results
https://www.hpmuseum.org/speed.htm

15C CE results

Math - RCL 2 yields 5591 divided by HP-9100 result of 679 x 100 = score of 823

Trig - RCL 2 yields 1139 divided by HP-9100 value of 40 x 100 = score of 2847

If I did this correctly these are pretty good scores...


3) The LBL A + GTO A counting speed test

Load the stack with 1, CLx.
LBL A + GTO A
counts in one minute 54,086

For reference, the 15C LE did 49,792 in one minute.


4) Valentin’s program to calculate e to 208 places from his “Long live the HP-15C!” article.

This program takes 22 seconds to compute e to 208 places with the Pause instruction at line 33 was omitted. With the Pause instruction included, the timing was 2 minutes 43 seconds). The numeric results are identical. Timing for an original HP-15c from Valentin’s article for 208 places was 62 minutes and 43 seconds.