DNNA: ale v ceniku jsem mel chybu, no.of pages slo totiz vytknout a bylo by z toho jen no.of pages X (£99-9) = no.of pages X £99, coz je jenom linearni a tim padem zadny zvyhodneni pri vetsi objednavce.
Tak jsem to opravil na:
final price = no.of pages X £99 - Ln(no.of pages)*no.of pages^i
variable i depends on the day of the week, average outdoor temperature and my own decision, my own depends on how sunny the day is (NSI - Norbert's Sun Index) and volume of beers I have had last night
jsem preci jenom clovek, taky delam chyby...