Re: Rounding a number to integer

[Bodolai Tibor <btb@...>]

My solution is:

function  math.roundf(value, factor)
  local r
  r = value / factor
  if value < 0 then
    r = math.ceil(r - 0.5)
  else
    r = math.floor(r + 0.5)
  end
  return r * factor
end

function  math.round(value, decimals)
  return math.roundf(value, 10^(-decimals))
end


2016.07.29. 10:06 keltez¨¦ssel, º­êØ ¨ªrta:
> Lua 5.3.0  Copyright (C) 1994-2015 Lua.org, PUC-Rio
>> 100000*1.005
> 100500.0
>> math.floor(100000*1.005)
> 100499
> 
> I want a function like math.round.
> 
>> math.round(100000*1.005)
> 100500
> 
> Have some good idea?