Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Re^4: Reverse engineering a formula...

by devnul (Monk)
on Jun 13, 2006 at 10:34 UTC ( [id://554994]=note: print w/replies, xml ) Need Help??


in reply to Re^3: Reverse engineering a formula...
in thread Reverse engineering a formula...

Not every number necessarily needs to be part of the formula (obviously its 2 or more numbers in some combination of addition and/or subtraction). Those two numbers could simply not be part of the formula.

- Devnul

Replies are listed 'Best First'.
Re^5: Reverse engineering a formula...
by Skeeve (Parson) on Jun 13, 2006 at 10:41 UTC
    As I said before: Not enough information...

    It seems as if your formular is something like this (untested code of course): 
    my @sign=( .... ); # Some combination of -1, 0 1
my @sum= map { $sign[$i] * $VAR1[$i] } (0..$#VAR1);
print eval join ' + ', @sum;

    [download]
    Now you "only" need to get the correct combination of -1, 0 and 1 for @sign, which is a "simple" combinational task but will be very lengthy...
    s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
    +.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e
[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?

www.com | www.net | www.org
Node Status?
node history
Node Type: note [id://554994]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? • Last hour • Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (2)
As of 2024-04-20 02:18 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found