Lua Long number to short format

[akgis]

Iam not to good with mathematics but I get around coding fine, lately I started to get onto Lua I used to program as a hobby on Pascal, Basic and VB 6.

I have a probleam I wanted to transform a long number like 1500000 into 1.5 Mil or 500000 into 500k, wanted to use this for a little addon I been developing and this would make easy to read large numbers

I know some already wrote code for this I saw this into Skada, Recount, Shadowed Unit Frames. I had dug into said addons to take some ideas but complexity of those addons are to big for me atm

I was hoping if someone could help me with a code snippet or the algoritm in english.

Thanks very much

[Dainton]

Try this out and just pass whatever you're trying to shorten through shortnum() (or w/e you want to name it).

local shortnum = function(v)
	if v <= 9999 then
		return v
	elseif v >= 1000000 then
		return format("%.1f mil", v/1000000)
	elseif v >= 10000 then
		return format("%.1fk", v/1000)
	end
end

[akgis]

Thanks alot Dainton. That code seems to work fine but egingell @wowace hooked me up with a similar code I already implemented

local function ReadableNumber(num, places)
    local ret
    local placeValue = ("%%.%df"):format(places or 0)
    if not num then
        return 0
    elseif num >= 1000000000000 then
        ret = placeValue:format(num / 1000000000000) .. " Tril" -- trillion
    elseif num >= 1000000000 then
        ret = placeValue:format(num / 1000000000) .. " Bil" -- billion
    elseif num >= 1000000 then
        ret = placeValue:format(num / 1000000) .. " Mil" -- million
    elseif num >= 1000 then
        ret = placeValue:format(num / 1000) .. "k" -- thousand
    else
        ret = num -- hundreds
    end
    return ret
end

So its fixed thanks alot anyway Dainton

[v6o]

Also, if all those zeros get messy you can always use 1e12 (1 and 12 zeros)