Can someone help me with abbreviating decimals?
I need help with this problem. I am making a simulator with an upgrade shop that upgrades by 1.25x, but the number gets so long because of the decimals, for example, 9.31322574615x Cash. I want to abbreviate it to having only 2 decimal digits instead of so many, but I don’t know how to do it. I know how to abbreviate stuff to the thousands or millions or billions but not decimals. I can’t seem to find this problem anywhere on the dev forum. I even tried searching it on YouTube, but it just gave me info on how to do it in languages like Java or Python or C++ and not Lua. Please help me if you can and I would really appreciate it!
2 answers
I went ahead and wrote you a function which rounds your number to the given decimal point.
local number = math.pi --example number local function round(num, decimals) -- 'num' is the number you want to round, 'decimals' is the decimal point you want to round to local const = 10 ^ decimals local num = num * const --Shift the decimal point to simplify rounding local compare = num - math.floor(num) --isolate the decimals we want to round if compare < 0.5 then --The logical operators are just rounding up or down to the closest whole number num = math.floor(num) --round down else num = math.ceil(num) --round up end return num / const --return the decimal point to its original position end print(number) -- Outputs 3.1415926535898 print(round(number, 2)) --Outputs 3.14
All you need to do is round the number. This is the best and most simple way to round numbers in roblox:
Number = 9.31322574615 -- Whatever the number is RoundedNumber = math.floor(Number * 100 + 0.5)/100 -- if you want it rounded to the tenths place make it *10 and /10, if you want it rounded to the hundredths place make it *100 and /100 and so on print(RoundedNumber)
I hope this helps!