HP-41: ELO - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: HP-41: ELO (/thread-244364.html) HP-41: ELO - Geir Isene - 05-29-2013 Not much, just for the record. Here's a short and sweet program to calculate the gain or loss of your ELO rating. Just do: ```K-value ENTER Opponent's ELO rating ENTER Your ELO rating ENTER Score (1 = you win, 0.5 = draw, 0 = you lose) XEQ"ELO" ``` The result is how much you gain or lose in ELO rating. The program: ```001 LBL"ELO" 002 "K^O^Y^W,D,L" 003 RDN 004 - 005 400 006 / 007 10 008 X<>Y 009 Y^X 010 1 011 + 012 1/X 013 CHS 014 RCL Z 015 + 016 * 017 END ``` Line 002 is included purely as a reminder of how to use the program (the sequence of values entered). Re: HP-41: ELO - Dieter - 05-29-2013 Is there a special reason for using ``` 10 X<>Y Y^X ``` instead of a simple 10x ? Dieter Re: HP-41: ELO - Geir Isene - 05-29-2013 Yes. It is special reason called oversight or stupidity. Pick one :) Re: HP-41: ELO - Ángel Martin - 05-30-2013 how about overpitidy and stusight? :-) We´ve all been there before multiple times - and will again! Re: HP-41: ELO - Geir Isene - 05-30-2013 I'll vote for overpitidy. Re: HP-41: ELO - Namir - 05-30-2013 There exists and Electric Light Orchestra rating??? Does Jeff Lynn know about this???? :-) Namir PS: Sorry I could not help it! Re: HP-41: ELO - Csaba Tizedes (Hungary) - 05-30-2013 Re: HP-41: ELO - Gerson W. Barbosa - 05-30-2013 &