Helena Gaspars-Wieloch (2012/3, Articles,
Limited Efficiency of Optimization Methods in Solving Economic Decision Problems
The author illustrates by means of numerical examples some economic decision problems (the choice of investment projects, the choice of optimum product mix, preparation of rankings for different objects based on incomparable criteria by means of standardized measures, the time-cost project analysis, the asset portfolio construction) for which the results generated by theoretically (...)
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$zapytanie2 = "select * from ksiazki where isbn > 99999999 and wyczerpany = '0' and oferta_specjalna = '0'";
$wynik2 = $dba->query($zapytanie2);
$ile2 = $wynik2->num_rows;
$rmax = rand(1, $ile2);
for ($i = 1; $i <= $rmax; $i++)
{
$wiersz2 = $wynik2->fetch_assoc();
}
$isbn = stripslashes($wiersz2['isbn']);
$tytul = stripslashes($wiersz2['tytul']);
$autor = stripslashes($wiersz2['autor']);
$cenadet = stripslashes($wiersz2['cenadet']);
$cenaprom = stripslashes($wiersz2['cenaprom']);
$cenapdf = stripslashes($wiersz2['cenapdf']);
$strony = stripslashes($wiersz2['liczbastron']);
$oprawa = stripslashes($wiersz2['oprawa']);
echo "
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$zapytanie2 = "select * from ksiazki where isbn > 99999999 and isbn != '".$isbn."' and wyczerpany = '0' and oferta_specjalna = '0'";
$wynik2 = $dba->query($zapytanie2);
$ile2 = $wynik2->num_rows;
$rmax = rand(1, $ile2);
for ($i = 1; $i <= $rmax; $i++){ $wiersz2 = $wynik2->fetch_assoc(); }
$isbn = stripslashes($wiersz2['isbn']);
$tytul = stripslashes($wiersz2['tytul']);
$autor = stripslashes($wiersz2['autor']);
$cenadet = stripslashes($wiersz2['cenadet']);
$cenapdf = stripslashes($wiersz2['cenapdf']);
$strony = stripslashes($wiersz2['liczbastron']);
$oprawa = stripslashes($wiersz2['oprawa']);
echo "
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