Need number to char help

[Mat]

Ah right.

In a / b, we call a the dividend and b the divisor. Is that what you wanted to know?

[Jos]

And I answered about mod. Maybe I wasn't clear. Instead of There's no specific part in help file that i dont understand. I should have said There's no specific part in mod() documentationthat I dont understand....I guess.

How should I express myself if I want to say you that I was reading mod function from help file and there wasn't any specific part in mod's documentation in help file that I didn't understand..

Ok, last energy i spent on this:

When you open the Mod() func helppage the first line states:

Performs the modulus operation.

So Google search gave me a fist hit for "Modulus Operation" : http://en.wikipedia.org/wiki/Modulo_operation

Case closed.

Jos

Edited October 13, 2010 by Jos

[ericnail]

I need to convert number to char.

1=A

26=Z

27=AA

By what logic i can convert random int to A-Z string?

I cant find any logig.

You said 27 = AA, which I find weird because i would thing 27 = (26 + 1) AKA "ZA".

But, I assumed you wanted to have the excess multiplied onto the origional. Anyway, here:

expandcollapse popup

#include <Array.au3>

HotKeySet("{F6}", "CalculateNum")

Global $char_string
Dim $Value[1], $String[1], $values[1]

While 1
    Sleep(20)
WEnd

Func CalculateNum()
    $Num = InputBox("Input Number", "Enter Number:")
    $Answer = GetNumber($Num)
    MsgBox(1, "Done!", "Your Calculated String:  " & $Answer)
EndFunc

Func GetNumber($Num)
    Local $count = 0
    
    If $Num > 26 Then
        Do 
            $Num_Count = $Num - 26
            $count =+1
        Until $Num_Count < 27
        
        $sub = 26 * $count
        $send_val = $Num - $Sub
        $remainder = AlphGet($send_val)
        $values[0] = $remainder
        For $i = 1 to $count
            ReDim $values[$count +1]
            $values[$i] = $remainder
        Next
        $String = _ArrayToString($values,"")
        Return $String
    Else
        Return AlphGet($Num)
    EndIf
    
EndFunc

Func AlphGet($Num)
    Switch $Num
        Case 1
            Return "A"
        Case 2
            Return "B"
        Case 3
            Return "C"
        Case 4
            Return "D"
        Case 5
            Return "E"
        Case 6
            Return "F"
        Case 7
            Return "G"
        Case 8
            Return "H"
        Case 9
            Return "I"
        Case 10
            Return "J"
        Case 11
            Return "K"
        Case 12
            Return "L"
        Case 13
            Return "M"
        Case 14
            Return "N"
        Case 15
            Return "0"
        Case 16
            Return "P"
        Case 17
            Return "Q"
        Case 18
            Return "R"
        Case 19
            Return "S"
        Case 20
            Return "T"
        Case 21
            Return "U"
        Case 22
            Return "V"
        Case 23
            Return "W"
        Case 24
            Return "X"
        Case 25
            Return "Y"
        Case 26
            Return "Z"
    EndSwitch
EndFunc

[E1M1]

Thanks again. ericnail You did it backwards too. but max number i can use is 52.

[Mat]

You said 27 = AA, which I find weird because i would thing 27 = (26 + 1) AKA "ZA".

Here's a better explanation on the maths, because I think it's good to know:

We count in base 10 (known as decimal). Here, each digit is ten time the last. Lets use 142 as our number:

100  |   10  |  1
   1  |    4  |  2

this can be shown as increasing powers of ten:

10^2 | 10^1 | 10^0
    1 |    4 |    2

in other bases, you just replace the ten with another number. In this case it's 26:

26^1 | 26^0
    5 |   12

or in binary:

2^7 | 2^6 | 2^5 | 2^4 | 2^3 | 2^2 | 2^1 | 2^0
   1 |   0 |   0 |   0 |   1 |   1 |   1 |   0 

=> 10001110

Usually this would be shown in a table, but sadly I can't do that here... I think you get the picture though. The only problem with bases higher than ten is that when we string those together we get: 512. But wait... is that 5 12 or 5 1 2, in the latter case you get: 3408 as the decimal, a long way out (in the wrong order of magnitude even). There are two ways of dealing with this. One is to add dots, so 5.12 in this case. Did you know an IP address is actually a base 256 number? 127.0.0.1 is 2130706433 in decimal.

The other way is to use more characters. For base N you need N characters, so in hexadecimal (base 16) we use 0-9 and A-F. 142 in hex:

16^1 | 16^0
    8 |   14

=> 8.14
=> 8E

E is the 14th character in 0123456789ABCD[b]E[/b]F

For this example, we use the alphabet, and no numbers.

base 10: 142
base 26: 5.12
       : EL

And there we are, number bases are easy when you think of decimal as being a base.

As a last little bit of work for you, whats the highest number you can count to on your fingers so that someone else could tell you exactly what number you were showing them?

[E1M1]

10?

[Mat]

10?

Je ne comprende pas

[Spiff59]

I think this is what's needed?

For $x = 1 To 705
    ConsoleWrite(ToBase26($x) & @CRLF)
Next

Func ToBase26($i)
    Local $s = ""
    While $i
        $m = Mod($i, 26)
        If $m = 0 Then $m = 26
        $s = Chr(64 + $m) & $s
        $i = ($i - $m) / 26
    Wend
    Return $s
EndFunc   ;==>ToBase26

[Mison]

Interesting topic, although I don't know if it's useful.