Problem with Step

[ennio]

Simple code:

$data = "start"
For $j = 0 To 1 Step 0.02
    $data = $data & $j & @CRLF
Next
$docu = FileOpen("testo.txt", 2)
FileWrite($docu, $data)
FileClose($docu)
exit

check the last numbers:

0.88

0.9

0.92

0.940000000000001

0.960000000000001

0.980000000000001

any help is apreciatted

regards,

- ennio

[JackDinn]

try

$data = $data & Round($j,2) & @CRLF

[ennio]

try

$data = $data & Round($j,2) & @CRLF

Thank for the reply , but this code should reach to "1"

and for that mistake in the STEP the cycle is not completed

any ideas?

regards..

-ennio

[JackDinn]

yea it is an odd result from the step & you would have to ask the gurus why it does both these things but as another kinda fudge yo could just use For $j = 0 To 1.01 Step 0.02 to get you to 1

[CodyBarrett]

im not a guru but this IS odd.. ive never seen this.... maybe its the decimal put in there? can you use whole numbers instead?

[Valik]

Yada yada yada, floating point numbers are imprecise, yada yada yada.

Seriously, I've answered this more times than I care to remember. It is not a bug. It is expected behavior. If you wish to know more I hear there's this thing called the internet that can answer all your "floating point imprecise" questions.