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Well, it was just a technical question.
Who could suppose that colourful replies.
Thank you Tomasz for the technical part,
Server and Marek for great inspiration, Tomasz
again for upgrade plan.
I have to deposit here my contribution:
The sure thing is that Tomasz will move to a sunny
place after examine that a 24h online connection with
world stock Markets exists, so weŽd better move there
all together and have my friend Nate(if he has the system
for QQQ he is still searching) and Hal(always prompt to
contribute to a new relative slope version) and Bill(with
a brand new Gann square solution) and David(with remote
ma(c,15) harami control system) and... and...
I promise to be there with a system of composite functions
calculating tomorrows exact open and close price.
So, ladies and gentlemen, put your secret charts and compasses
on the table and search for AmibrokerLand.
A good start is to buy some Real estate futures there.
Dimitris Tsokakis
--- In amibroker@xxxx, "Tomasz Janeczko" <amibroker@xxxx> wrote:
> Hi,
>
> Thank you very much for your recommendations. Nothing works better
than
> a word from a friend.
> As for my retirement - I don't plan this any time soon. I am 32 now
so you may expect
> hundreds of upgrades :-)
>
> Best regards,
> Tomasz Janeczko
> ===============
> AmiBroker - the comprehensive share manager.
> http://www.amibroker.com
>
> ----- Original Message -----
> From: server not recognized
> To: amibroker@xxxx
> Sent: Tuesday, November 06, 2001 3:30 PM
> Subject: Re: [amibroker] Optimization
>
>
> Tomasz,
>
> Good to see that "Nobody is perfect". My "Fortran 90/95 for
Scientists and Engineers" discusses this on pages 6 to 9. Right after
the pictures that show what a computer looks like.
>
> BTW at last count I have reached twenty recommendations I have
made to others to purchase. Unfortunately, I realise now that if all
AB users were to do this, pretty soon AB would have 100,000
users........and Tomasz would retire to a warm and sunny place.
>
> What to do? Life is full of yin and yang.
> ----- Original Message -----
> From: Tomasz Janeczko
> To: amibroker@xxxx
> Sent: Tuesday, November 06, 2001 11:00 PM
> Subject: Re: [amibroker] Optimization
>
>
> Hello,
>
> The floating point arithmetic is sometime strange :-)
> As you probably know decimal fractions could not be represented
> accuratelly in the IEEE floating point format (only powers of 2
> could be represented so 0.5, 0.25, 0.125, 0.0625 ... are always
precise).
> Unfortuntatelly 0.1 can not be represented 100% accuratelly as
> a power of 2. So it is in fact 0.1000000000000000001 or
something like that.
> Then iterating this leads to 0.800000000000000008 which is
bigger than 0.8
> so it is not included in the loop.
>
> As integers are always represented correctly you may use the
following
> D1= 0.1 * Optimize("D1",5,5,8,1);
>
> Alternativelly you can use this:
> D1=Optimize("D1",0.5,0.5,0.80001,0.1);
>
> Anyway, I will try to implement some improvements to workaround
this problem
> internally in AmiBroker.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: Dimitris Tsokakis
> To: amibroker@xxxx
> Sent: Tuesday, November 06, 2001 9:16 AM
> Subject: [amibroker] Optimization
>
>
> Dear Tomasz,
> I noticed that in
> D1=Optimize("D1",0.5,0.5,0.8,0.1);
> the result list had
> D1=0.5, 0.6, 0.7
> In D1=Optimize("D1",0.5,0.5,0.6,0.01);
> the result was complete
> D1=0.5, 0.51, 0.52, ..., 0.59, 0.60
> Is there any reason for the first case?
> Best Regards
> Dimitris Tsokakis
>
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