deletions | additions       diff --git a/subsection_Notations_for_bytes_In__.tex b/subsection_Notations_for_bytes_In__.tex  index d9c422d..aad615d 100644  --- a/subsection_Notations_for_bytes_In__.tex  +++ b/subsection_Notations_for_bytes_In__.tex 
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In computer science it is very useful to represent long strings of bits in a compact way.  For this aim, we use hexadecimal notation, i.e. the notation for numbers in base $16$. This notation system uses sixteen symbols, i.e. the usual symbols 0-9 to represent numbers from 0 to 9 and then the letters A, B, C, D, E, F for the numbers from ten to sixteen.  \\  Each hexadecimal digit symbol  represents a {\em nibble}, i.e. four bits, as shown in the following table \begin{center}  \begin{tabular}{|c|c|c|c|}  \hline