I'm new in shell scripting and i face some problems.
I need your help to calculate a logarithmic expression in shell script
for example i have 2 variables x1 x2
$Result=`expr x2 * log2 x1` ????
$echo "Result is $Result
I know that this is wrong and i cant find any solution.
what I'm trying to do is to "import" the formula of entropy which is
-Σ x1*log x1 for some values that i have . If someone knows please help me