How many posibilities on a binary ?

Posted by Val on Stack Overflow See other posts from Stack Overflow or by Val
Published on 2010-05-26T11:56:07Z Indexed on 2010/05/26 12:01 UTC
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binary

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calculation

in hexadecimal "10 10 10 10" system you have 0-255 posibilities right? in total 256 different posibilities as there are 8 1s and 0s.

how many different posibilities would i get?

if i had 10 digits. instead of 8?

or how would i calculate that in php ?

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