Small Arithmetic Scripts

All Scripts written under Ubuntu 7.04

10 to the Power of x

#!/bin/bash
# 10 to the power of x

read -p "x:" x
echo -n "10^$x="
echo 10^$x | bc

odd or even

#!/bin/bash
# Odd or Even
# Got the idea from
# http://bash.cyberciti.biz/academic/odd_or_even.sh.php

read -p "x:" x
ore=$(( $x % 2 ))
if [ $ore -eq 0 ]
then
	echo "$x is an even number"
else
	echo "$x is an odd number"
fi

Pi

#!/bin/bash
#Pi

read -p "# of decimal places:" n
echo -n "pi="
echo "scale=$n; 4*a(1)" | bc -l

x to the power of y

#!/bin/bash
# x to the power of y

read -p "x:" x
read -p "y:" y
echo -n "$x^$y="
echo "scale=4; $x^$y" | bc

square

#!/bin/bash
# square

read -p "x:" x
echo -n "$x^2="
echo "scale=4; $x*$x" | bc

square root

#!/bin/bash
# square root

read -p "x:" x
echo "Square root does not provide decimal"
echo -n "square root of $x="
echo sqrt($x) | bc

~ by aric on July 27, 2007.