Shell Scripting Tutorial for Beginners 11 - Floating point math operatio...

#! /bin/bash

num1=20.5
num2=5

echo "$num1+$num2" | bc
echo "$num1-$num2" | bc
echo "20.5*5" | bc
echo "scale=20;20.5/5" | bc
echo "20.5%5" | bc

num=4

echo "scale=2;sqrt($num)" | bc -l
echo "scale=2;3^3" | bc -l