Precision

[Thiago Conde Figueiro <thiago@...>]

	Could anyone tell me if this is supposed to happen?  It didn't look very good on my numerical analysis class. :-)

[tcs@is32 tmp]$ cat teste.lua 
local a = -1
while a < 1 do
  print(a)
  a = a +0.15
end

[tcs@is32 tmp]$ lua
Lua 4.0  Copyright (C) 1994-2000 TeCGraf, PUC-Rio
> dofile("teste.lua")
-1
-0.85
-0.7
-0.5499999999999999
-0.3999999999999999
-0.2499999999999999
-0.09999999999999992
0.05000000000000007
0.2000000000000001
0.3500000000000001
0.5000000000000001
0.6500000000000001
0.8000000000000002
0.9500000000000002


[]'s,
Thiago.