scientific notation to expanded form ?

[MachinistProgrammer]

im writing a simple internal data compressor which uses the ANSI charecter codes and converts them into a large integer which is then divided by a number (based on the compression level) the problem is that when the data is decompressed it hase to times the integer by the divided number, but the number returned 4.36484128440388e+039 how can i convert it to its expanded form (109121032110097109101032105115032098111098)

#include <array.au3>
 

Func _decompressdata($data,$level)
$idata = _StringCut($data*$level,3)
Local $chr
For $i = 0 to UBound($idata) -1
$chr &= Chr($idata[$i])
Next
Return $chr
endFunc
Func _StringCut($string, $size)
$count = Ceiling(StringLen($string)/$size)
Dim $array[$count+1], $start = 1
For $i = 1 To $count
    $array[$i] = StringMid($string, $start, $size)
    $start += $size
Next
$array[0] = $count
_ArrayDelete($array,0)
Return $array
EndFunc

[PhoenixXL]

Large Numbers...

I guess you have to check BigNum UDF for handling them.

What I mean ? Check this

$String = '109121032110097109101032105115032098111098'
;see the difference.
MsgBox(64, "String", $String)
MsgBox(64, "Number", Number($String))

According to what you are asking, string operations could be used to get back the original expression, but the number could not be used in any calculations through native methods.

[guinness]

I never knew the largest possible number available was 9223372036854775807. Still a big number though.

[PhoenixXL]

This way you can convert the expression into numerical form

MsgBox(64, "Return", String_Expand_E_Notation("4892e-32"))
MsgBox(64, "Return", String_Expand_E_Notation("4892E213"))

Func String_Expand_E_Notation($s_integer)

    StringRegExpReplace($s_integer, "(?i)[^e\d.+\-*/^]", "")
    ;anything other than "e", digit, operators and decimal is found.
    If @extended Then Return SetError(1, @extended, 0)

    ;perform the replacement and return the result.
    Return StringRegExpReplace($s_integer, "(?i)(e([+\-]?[\d.]+)$)", "*(10^(\2))")

EndFunc   ;==>String_Expand_E_Notation

 

use the BigNum UDF to get the real number thereafter

Regards

Edited May 20, 2013 by PhoenixXL