Help with price calculation

[ov_dv (chiazk)]

I have been making an upgrade simulator but im having issues making custom buy amount because my price formula is exponential
is there a way to calculate total price without using any loops

formula: 3 (base) x 2^current lv

[AeroScripts (Kurz)]

Can’t you just say this?

local level = --wherever your level is placed
local expNeeded = 3 * (2 ^ level.Value)

[ov_dv (chiazk)]

level means current level sorry if you got mistaken

[TheHobber1712 (Hobber)]

Hello!

If I understand your question correctly, you want a sum of all prices, which all have the formula 3 * 2^lvl like this?:

price = (3 * 2^1) + (3 * 2^2) + (3 * 2^3)...

local amount = 3
local totalPrice = 0
for level = 1, amount do
   totalPrice += 3 * 2 ^ level
end

If yes, you can use the following formula n * (2 - 1 / (n / 6)) to get the sum of all prices, where n is the highest price at the amount you want. For example, you can use it like this:

local amount = 3  -- the amount you want, 3 is a placeholder
local highestPrice = 3 * 2 ^ amount   -- the highest, possible single cost

local totalPrice = highestPrice * (2 - 1 / (highestPrice / 6))

totalPrice should now have the same results as the for loop above.

Hope I could help!