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APWJ exercises for the reader [2 of 4]
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APWJ exercises for the reader [2 of 4]
by Ian Clark-6
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In At Play With J Edn 1, there were 4 questions left as exercises for
the reader. In Edn 2 we want to provide the answers in an Appendix. Just so I don't get them wrong, could the forum please suggest what the answers should be? You may have to refer to the Wiki page. I'm putting each question in a separate thread. +++++ In: Ch 10 Years Digits http://www.jsoftware.com/jwiki/Doc/Articles/Play124 [see end-of-page] "There is a solution to 91 which is shorter than this, by the way." +++++ Ian Clark Subeditor, APWJ Edn 2 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm |
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Re: APWJ exercises for the reader [2 of 4]
by Roger Hui
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The expressions to beat are #.p:q:|_19b96 and
>:1#.q:996, both with 5 tokens. A 4-token solution is: <: #. <. _1.9 96 ----- Original Message ----- From: Ian Clark <earthspotty@...> Date: Wednesday, November 11, 2009 3:56 Subject: [Jprogramming] APWJ exercises for the reader [2 of 4] To: Programming forum <programming@...> > In At Play With J Edn 1, there were 4 questions left as > exercises for > the reader. In Edn 2 we want to provide the answers in an Appendix. > > Just so I don't get them wrong, could the forum please suggest what > the answers should be? You may have to refer to the Wiki page. > > I'm putting each question in a separate thread. > > +++++ > In: Ch 10 Years Digits > http://www.jsoftware.com/jwiki/Doc/Articles/Play124 [see end-of-page] > > "There is a solution to 91 which is shorter than this, by the way." > +++++ > > > Ian Clark > Subeditor, APWJ Edn 2 For information about J forums see http://www.jsoftware.com/forums.htm |
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Re: APWJ exercises for the reader [2 of 4]
by Ian Clark-6
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Any advances on that?
Ian PS: selected contributors (my choice) get acknowledged. On Wed, Nov 11, 2009 at 5:41 PM, Roger Hui <rhui000@...> wrote: > The expressions to beat are #.p:q:|_19b96 and >>:1#.q:996, both with 5 tokens. A 4-token solution is: > <: #. <. _1.9 96 > > > > ----- Original Message ----- > From: Ian Clark <earthspotty@...> > Date: Wednesday, November 11, 2009 3:56 > Subject: [Jprogramming] APWJ exercises for the reader [2 of 4] > To: Programming forum <programming@...> > >> In At Play With J Edn 1, there were 4 questions left as >> exercises for >> the reader. In Edn 2 we want to provide the answers in an Appendix. >> >> Just so I don't get them wrong, could the forum please suggest what >> the answers should be? You may have to refer to the Wiki page. >> >> I'm putting each question in a separate thread. >> >> +++++ >> In: Ch 10 Years Digits >> http://www.jsoftware.com/jwiki/Doc/Articles/Play124 [see end-of-page] >> >> "There is a solution to 91 which is shorter than this, by the way." >> +++++ >> >> >> Ian Clark >> Subeditor, APWJ Edn 2 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > For information about J forums see http://www.jsoftware.com/forums.htm |
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Re: APWJ exercises for the reader [2 of 4]
by Roger Hui
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The challenge posed was to find an expression using
fewer number of tokens than 5. The challenge was met. ----- Original Message ----- From: Ian Clark <earthspotty@...> Date: Wednesday, November 11, 2009 15:00 Subject: Re: [Jprogramming] APWJ exercises for the reader [2 of 4] To: Programming forum <programming@...> > Any advances on that? > > Ian > > PS: selected contributors (my choice) get acknowledged. > > > > On Wed, Nov 11, 2009 at 5:41 PM, Roger Hui <rhui000@...> wrote: > > The expressions to beat are #.p:q:|_19b96 and > >>:1#.q:996, both with 5 tokens. A 4-token solution is: > > <: #. <. _1.9 96 > > > > > > > > ----- Original Message ----- > > From: Ian Clark <earthspotty@...> > > Date: Wednesday, November 11, 2009 3:56 > > Subject: [Jprogramming] APWJ exercises for the reader [2 of 4] > > To: Programming forum <programming@...> > > > >> In At Play With J Edn 1, there were 4 questions left as > >> exercises for > >> the reader. In Edn 2 we want to provide the answers in an Appendix. > >> > >> Just so I don't get them wrong, could the forum please > suggest what > >> the answers should be? You may have to refer to the Wiki page. > >> > >> I'm putting each question in a separate thread. > >> > >> +++++ > >> In: Ch 10 Years Digits > >> http://www.jsoftware.com/jwiki/Doc/Articles/Play124 [see end- > of-page] > >> > >> "There is a solution to 91 which is shorter than this, by the way." > >> +++++ > >> > >> > >> Ian Clark > >> Subeditor, APWJ Edn 2 For information about J forums see http://www.jsoftware.com/forums.htm |
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Re: APWJ exercises for the reader [2 of 4]
by Ian Clark-6
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Strictly speaking you are perfectly right. Your contribution(s) *will*
be acknowledged. Any advances on that? Ian On Wed, Nov 11, 2009 at 11:03 PM, Roger Hui <rhui000@...> wrote: > The challenge posed was to find an expression using > fewer number of tokens than 5. The challenge was met. > > > > ----- Original Message ----- > From: Ian Clark <earthspotty@...> > Date: Wednesday, November 11, 2009 15:00 > Subject: Re: [Jprogramming] APWJ exercises for the reader [2 of 4] > To: Programming forum <programming@...> > >> Any advances on that? >> >> Ian >> >> PS: selected contributors (my choice) get acknowledged. >> >> >> >> On Wed, Nov 11, 2009 at 5:41 PM, Roger Hui <rhui000@...> wrote: >> > The expressions to beat are #.p:q:|_19b96 and >> >>:1#.q:996, both with 5 tokens. A 4-token solution is: >> > <: #. <. _1.9 96 >> > >> > >> > >> > ----- Original Message ----- >> > From: Ian Clark <earthspotty@...> >> > Date: Wednesday, November 11, 2009 3:56 >> > Subject: [Jprogramming] APWJ exercises for the reader [2 of 4] >> > To: Programming forum <programming@...> >> > >> >> In At Play With J Edn 1, there were 4 questions left as >> >> exercises for >> >> the reader. In Edn 2 we want to provide the answers in an Appendix. >> >> >> >> Just so I don't get them wrong, could the forum please >> suggest what >> >> the answers should be? You may have to refer to the Wiki page. >> >> >> >> I'm putting each question in a separate thread. >> >> >> >> +++++ >> >> In: Ch 10 Years Digits >> >> http://www.jsoftware.com/jwiki/Doc/Articles/Play124 [see end- >> of-page] >> >> >> >> "There is a solution to 91 which is shorter than this, by the way." >> >> +++++ >> >> >> >> >> >> Ian Clark >> >> Subeditor, APWJ Edn 2 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > For information about J forums see http://www.jsoftware.com/forums.htm |
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