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Groups > comp.programming > #1218
| Newsgroups | sci.logic, rec.puzzles, sci.math.num-analysis, comp.programming, sci.math |
|---|---|
| Subject | Re: the hourglass problem |
| References | (1 earlier) <jdos8s$ov8$1@dont-email.me> <c8d68757-07b4-46c4-80b0-65102dfe43f9@g41g2000yqa.googlegroups.com> <v2MMq.60724$_H.43451@newsfe16.iad> <478b1856-4fbf-4cc2-910e-73aff2d13edb@p13g2000yqd.googlegroups.com> <EHcNq.74840$U16.69957@newsfe15.iad> |
| From | "Harry Vaderchi" <admin@127.0.0.1> |
| Message-ID | <op.v7lvoebf1r0rdn@dell3100> (permalink) |
| Organization | virginmedia.com |
| Date | 2012-01-05 10:06 +0000 |
Cross-posted to 5 groups.
On Thu, 05 Jan 2012 07:55:15 -0000, Daniel Pitts <newsgroup.nospam@virtualinfinity.net> wrote: > On 1/4/12 10:55 PM, Dave Dodson wrote: >> On Jan 3, 5:19 pm, Daniel Pitts<newsgroup.nos...@virtualinfinity.net> >> wrote: >> >>> Without having done any analysis, I think specifically that the LCD is >>> a >>> key to the intervals, which may lead to the general solution. >> >> It is probably the GCD, not the LCD. GCD(4,7) = 1, meaning that you >> can hit every integer beyond a certain one, in this case beyond 6. >> >> If the GCD(t1,t2) = 2, e.g., then you won't be able to hit any odd >> integers. Etc. >> >> Dave > Indeed, I meant GCD, though I typed the wrong thing :-) Thanks for the > correction. > > Although, I don't see how you would get 6 with 4 and 7. The possible > values are 4,7,8,9... > > Another potentially interesting problem would be "how to get to n with > the fewest turns" > 7-4=3 twice 3 is 6. HTH -- [dash dash space newline 4line sig] Albi CNU
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the hourglass problem RichD <r_delaney2001@yahoo.com> - 2011-12-31 18:03 -0800
Re: the hourglass problem William Elliot <marsh@rdrop.com> - 2011-12-31 19:21 -0800
Re: the hourglass problem Dave Dodson <dave_and_darla@Juno.com> - 2011-12-31 19:41 -0800
Re: the hourglass problem William Elliot <marsh@rdrop.com> - 2012-01-01 19:48 -0800
Re: the hourglass problem Patricia Shanahan <pats@acm.org> - 2012-01-01 20:44 -0800
Re: the hourglass problem William Elliot <marsh@rdrop.com> - 2012-01-01 23:08 -0800
Re: the hourglass problem Patricia Shanahan <pats@acm.org> - 2012-01-02 07:55 -0800
Re: the hourglass problem Dr Nick <3-nospam@temporary-address.org.uk> - 2012-01-02 16:17 +0000
Re: the hourglass problem Robert Wessel <robertwessel2@yahoo.com> - 2012-01-03 03:37 -0600
Re: the hourglass problem Remysun <remysun2000@yahoo.com> - 2012-01-02 17:10 -0800
Re: the hourglass problem "BartC" <bc@freeuk.com> - 2012-01-03 01:12 +0000
Re: the hourglass problem root <NoEMail@home.org> - 2012-01-01 05:51 +0000
Re: the hourglass problem William Elliot <marsh@rdrop.com> - 2012-01-01 20:04 -0800
Re: the hourglass problem Duncan Booth <duncan.booth@invalid.invalid> - 2012-01-02 11:42 +0000
Re: the hourglass problem RichD <r_delaney2001@yahoo.com> - 2012-01-03 15:05 -0800
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-03 15:19 -0800
Re: the hourglass problem PT <ptanenbaum@consultant.com> - 2012-01-04 12:28 -0800
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-04 13:44 -0800
Re: the hourglass problem Dave Dodson <dave_and_darla@Juno.com> - 2012-01-04 22:55 -0800
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-04 23:55 -0800
Re: the hourglass problem "Harry Vaderchi" <admin@127.0.0.1> - 2012-01-05 10:06 +0000
Re: the hourglass problem "BartC" <bc@freeuk.com> - 2012-01-05 13:44 +0000
Re: the hourglass problem Patricia Shanahan <pats@acm.org> - 2012-01-05 08:13 -0800
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-05 11:55 -0800
Re: the hourglass problem JohnF <john@please.see.sig.for.email.com> - 2012-01-06 04:40 +0000
Re: the hourglass problem Dave <dave_and_darla@Juno.com> - 2012-01-05 15:37 -0800
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-05 16:02 -0800
Re: the hourglass problem Duncan Booth <duncan.booth@invalid.invalid> - 2012-01-02 11:50 +0000
Re: the hourglass problem Frederick Williams <freddywilliams@btinternet.com> - 2012-01-02 17:18 +0000
Re: the hourglass problem msb@vex.net (Mark Brader) - 2012-01-02 17:40 -0600
Re: the hourglass problem RichD <r_delaney2001@yahoo.com> - 2012-01-02 17:37 -0800
Re: the hourglass problem msb@vex.net (Mark Brader) - 2012-01-02 23:45 -0600
Re: the hourglass problem "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2012-01-03 10:06 +0100
Re: the hourglass problem Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2012-01-03 12:51 +0100
Re: the hourglass problem Nicolas Neuss <lastname@scipolis.de> - 2012-01-03 18:07 +0100
Re: the hourglass problem Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2012-01-03 21:58 +0100
Re: the hourglass problem Frederick Williams <freddywilliams@btinternet.com> - 2012-01-03 13:22 +0000
Re: the hourglass problem "BartC" <bc@freeuk.com> - 2012-01-03 12:59 +0000
Re: the hourglass problem Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2012-01-03 12:47 +0100
Re: the hourglass problem Frederick Williams <freddywilliams@btinternet.com> - 2012-01-05 14:09 +0000
Re: the hourglass problem Patricia Shanahan <pats@acm.org> - 2012-01-05 08:17 -0800
Re: the hourglass problem Frederick Williams <freddywilliams@btinternet.com> - 2012-01-05 16:27 +0000
Re: the hourglass problem Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-05 11:57 -0800
Re: the hourglass problem JohnF <john@please.see.sig.for.email.com> - 2012-01-06 06:42 +0000
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