A quick question on the cost of tech.

[Hot_Enamel]

What is the formula to calculate the cost of a tech in gold ?

I can get the tech values from the editor, but how is it then converted to gold.


{edit} - So that a fair price can be calculated in PBEMs'

[alexman]

Tech cost = (1 - 0.5 * k / (n-1)) * c * r / d

k = known civs that already have the tech
n = total number of civs left in the game
c = tech base cost
r = tech rate for the map
d = difficulty factor

Example:
Monotheism at Monarch,
Small map,
known by 2 civs out of 6:
Cost = (1-0.5*2/5)*36*200/9 = 640

[alva]

This info should be on the F1 screen IMO.
In example one should see:

" 230*/640** 5 turns to go "

* = research done over the last couple of turns
** = total needed (currently)

[Hot_Enamel]

Thankyou

[MrWhereItsAt]

Just quickly - the map and tech base costs can be found under the appropriate tabs in the editor when you are editing the rules for the .bix file.