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WP 31S available at SourceForge
04-21-2014, 01:23 PM
Post: #25
RE: WP 31S available at SourceForge
(04-18-2014 07:12 PM)walter b Wrote:  FYI, we've got a problem with the commands contained in DISTR.

Indeed. There are also some troubles with the 34s versions that have been mentioned earlier. For instance a simple case like t –1 (p=0,01, df=10) runs for more than 15 seconds on a hardware 34s. So I tried a program in user code, et voilà: less than 5 seconds (resp. 6 in DP). Now imagine how fast this would run in compiled C-code. I assume there's something wrong with the initial guess for the Student quantile. In the above case the method I originally suggested starts with |t|=2,781... (result: –2,7637...), which requires just 4 resp. 5 iterations.

Quote:Everything else seems to be working just fine.

I beg to differ. Remember the calendar issue and the PRIME? test.

BTW - are there any plans on exposing DP mode to the user? If not, several time-consuming 31s functions (especially the distributions) may be rewritten for much faster execution. Remember the HP35 design goal, more than four decades ago: the user should not wait for more than a second until the result appears. ;-)

Dieter
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Messages In This Thread
WP 31S available at SourceForge - walter b - 04-15-2014, 07:49 AM
RE: WP 31S available at SourceForge - Bit - 04-17-2014, 05:27 PM
RE: WP 31S available at SourceForge - Dieter - 04-21-2014 01:23 PM
WP 31S inquest - walter b - 04-30-2014, 10:31 AM
RE: WP 31S inquest - walter b - 04-30-2014, 11:20 AM
RE: WP 31S available at SourceForge - JimP - 05-02-2014, 11:18 PM
RE: WP 31S available at SourceForge - nsg - 07-16-2014, 01:18 AM
RE: WP 31S available at SourceForge - Bit - 11-13-2014, 05:11 AM
RE: WP 31S available at SourceForge - Bit - 11-13-2014, 01:22 PM
RE: WP 31S available at SourceForge - Bit - 11-13-2014, 04:35 PM
RE: WP 31S available at SourceForge - Bit - 11-16-2014, 04:35 AM
RE: WP 31S available at SourceForge - Bit - 11-17-2014, 01:52 AM
RE: WP 31S available at SourceForge - Bit - 01-31-2015, 03:01 PM
RE: WP 31S available at SourceForge - Bit - 11-17-2014, 01:12 AM



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