math-operation.note

Arithmetic Operations

Exponentiation $a ** $b
Multiplication    $a * $b
Division 		$a / $b
Modulo		$a % $b
Addition		$a + $b
Subtraction 	$a - $b

######################## Examples

a=2
b=$((d+2))
echo $b
((b++))
((b--))
((b+=5))
((b*=5))
((b/=5))
((b-=5))

# for floating numbers

g=$(echo 1/3 | bc -l)