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Joseph's answer is correct.
Gosh ! I thought that I would just illustrate the utility and
flexibility of .afl - all without revealing my super secret and
extremely profitable trading system. :>)
A more complete set of rules:
1. E, L, F, O are integers in the range 0 to 9.
2. E != L != F != O
3. The O is a letter, not the number zero.
4. Yahoo! does compress out all of the white spaces, making the
columns mis-align. It is supposed to be the sum of 2 - 3 digit
numbers equaling a 4 digit number.
At the risk of turning this into a monster of off topic discussion -
here's another
EGG + EGG = PAGE
I won't post the code for this, although the code from the first
posting can be easily modified to get the answer - showing the
operation of array indexes, nested loops and the operation of the if
statement.
ReefBreak
--- In amibroker@xxxxxxxxxxxxxxx, "J. Biran" <jbiran@xxx> wrote:
>
> I think the answer is much simpler:
> F in the result has to be 1 (carry), the rest is automatic
>
> ELF 721
> + ELF 721
> ________ _______
>
> FOOL 1442
>
>
>
> Joseph Biran
> ____________________________________________
>
>
> -----Original Message-----
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
> Behalf Of Dennis Brown
> Sent: Friday, May 04, 2007 8:33 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Re: AmiBroker 4.94.0 BETA released
>
> LOL,
>
> The brute force solution in AFL. I have solved many problems this
> way with BASIC, APL, etc.
>
> However, looking at this problem, it looks more like a logic problem
> than a math problem.
>
> You get a big hint because:
> F+0 = L therefore L= F
> E +0 +carry = F therefore E = F - 1
> substituting you get:
> c c
> F-1 F F
> F-1 F F
> ---------------------
> F 2F 2F F
>
> to make a carry: 2F > 10 therefore F>4 and O = 2F-10
> L&F = 5, E = 4, O = 0
> L&F = 6, E = 5, O = 2
> L&F = 7, E = 6, O = 4
> L&F = 8, E = 7, O = 6
> L&F = 9, E = 8, O = 8
>
> Fun one,
> Dennis
>
>
> On May 4, 2007, at 10:15 PM, Ed Hoopes wrote:
>
> > AFL a powerful and flexible language - YES !
> >
> > A math teacher friend of mine gave me the following problem:
> >
> > ELF
> > + ELF
> > ________
> >
> > FOOL
> >
> > Each letter is an integer variable over the range 0 - 9.
> > Find the values of E, L, F, O.
> >
> > After contemplating solving 4 equations in 4 unknowns, I decided to
> > solve it by brute force with AFL. Coded as follows:
> >
> > // elf
> > // + elf
> > //_______
> > // fool
> >
> > for (eee = 0; eee < 10; eee++)
> > {
> > for ( lll = 0; lll < 10; lll = lll + 2 )
> > {
> > for( fff = 0; fff < 10; fff++ )
> > {
> > elf = 100 * eee + 10 * lll + fff ;
> > for (ooo = 0; ooo < 10; ooo++ )
> > {
> > fool = 1000*fff + 100*ooo + 10*ooo + lll;
> > if(2*elf[fff] == fool[ooo])
> > printf("eee= " + eee + " lll= " + lll + " fff= " + fff + "
> ooo= " +
> > ooo + "\n" ) ;
> > else
> > xxx=0 ;
> > }
> > }
> > }
> > }
> >
> > Excuse the wrapping.
> >
> > AFL is GREAT !
> >
> > ReefBreak
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "brian_z321" <brian_z321@>
> wrote:
> >>
> >> --- In amibroker@xxxxxxxxxxxxxxx, "jim_trades_stocks" <jnk1997@>
> >> wrote:
> >>>
> >>> Forget about trading, making money...Baaah!, no time for that!
> >>>
> >>> Your mission is to keep up with the advanced functions,
> >> capabilities
> >>> and coding of Amibroker for a lifetime adventure of backtesting
> and
> >>> viewing theoretical equity curves.
> >>>
> >>> I Guess the new evolutionary "AFL Wizard" didn't make it within 2
> >>> months as was promised.
> >>
> >> Jim,
> >>
> >> No one knows how to push peoples buttons more than a sales
> executive.
> >>
> >> So you want your Formula Wizard and you want it now and you mounted
> a
> >> public campagn to bustle Tomasz into doing it?
> >>
> >> I am a goer myself so I have a sneaking regard for others who have
> >> balls ;-)
> >>
> >> Perhaps you, and others, should consider the affect that this
> public
> >> and constant tearing away at Tomasz's persona has on him.
> >>
> >> He is a brilliant person but he is also human, just like us.
> >>
> >> On top of that you divert Tomasz's attention away from productive
> >> tasks and the same applies to group members who have to come in and
> >> post to provide some balance.
> >>
> >> Also, I think you will find there are better ways to get what you
> >> want without the need for public blustering.
> >>
> >> I am an aggressive person but I have learnt that controlled
> >> aggression, proactively directed, is the way to use that energy
> >> constructively; sport is the arena where this is most apparent to
> any
> >> observer.
> >>
> >> As I said in another post, I have found Tomasz very approachable,
> yes
> >> even susceptible, to a well presented private petition.
> >>
> >>
> >> FTR
> >>
> >> I have been a persistent and strong campaigner on user easy
> features
> >> since I joined the Ami forum but a Formula Wizard does not get my
> >> vote.
> >> I have used them in other programs and they just don't do anything
> >> for me.
> >> However if Tomasz wants to do it there will be no complaints from
> me.
> >>
> >> The reason?
> >>
> >> I trust Tomasz's ability to steer the ship, and, aside from
> offering
> >> no strings attached suggestions here and there I leave him to get
> on
> >> with his job and I get on with mine.
> >>
> >> 55 years old has nothing to do with it.
> >> Neither does *I am not trained in programming or computers*
> >> *I have a full time job and a family to care for* has a lot to do
> >> with it.
> >>
> >> I empathise with the fact that you are a road warrior; a tough
> career
> >> choice.
> >>
> >> All the best for your career and your trading,
> >>
> >> Brian.
> >>
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> Yahoo! Groups Links
>
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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For other support material please check also:
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