Hexadecimal (base 16), decimal (base 10), octal (base 8), and binary (base 2) are the most commonly used numeral systems in engineering and computing. Therefore, Excel has provided functions to convert numeric values to and from each of these systems.
The Excel Oct2Bin function converts an Octal (Base 8) number into a Binary (Base 2) number.
The format of the function is :
Where the function arguments are as follows:
|number||-||The octal number that is to be converted to binary.|
|[places]||-||If omitted, the returned binary uses the minimum number of places.|
Note that the number argument must be no more than 10 characters (40 bits) long. The most significant bit of this value denotes the sign of the number and the remaining 39 bits denote the magnitude. Negative numbers are represented using two's complement notation.
The Octal (Base 8) Numeral System uses the digits 0-7.
The following table shows the first 16 octal values, along with the equivalent decimal values:
For further information on the octal numeral system, see the Wikipedia Octal Page
The Binary (Base 2) Numeral System uses the digits 0 & 1.
The following table shows the first 8 binary values, along with the equivalent decimal values:
The following spreadsheet shows examples of the Excel Oct2Bin function. The format of the function is shown in the spreadsheet on the left and the result is shown in the spreadsheet on the right.
Note that, in the above example spreadsheet, the negative octal and binary numbers in cell A4 are represented by two's complement notation.
Further information and examples of the Excel Oct2Bin function can be found on the Microsoft Office website.
If you get an error from your Excel Oct2Bin function this is likely to be one of the following :
|#VALUE!||-||Occurs if the supplied [places] argument is not recognised as a number|
Occurs when Analysis ToolPak add-in is not enabled in your Excel.