>>>>> "John" == John Toohey <j...@parspro.com> writes:
John> Thank you, duly chastened. I did know the formulae for P and C, but didn't John> know how to add the repetitions. My original code was :- John> |c| John> c := SortedCollection new. John> c add: '0, 0'; add:'1, 1'; add: '2, 2'; add:'3, 3'; add: '4, 4'. John> (0 to: 4) combinations: 2 atATimeDo:[:each | c add: each asCommaString. c John> add:( each reverse) asCommaString]. "Every time I cut with this wide saw, it removes 1/2 inch from the wood! I'll just glue it back after the cuts!" "why don't you just use the laser cutter? no losses!" :-) -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <mer...@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project