commit bash-20130301 snapshot

examples/functions/sqroot

@@ -0,0 +1,21 @@
+#From: Syamala Rao Tadigadapa <stadigad@us.oracle.com>
+#Subject: Re: Division in ksh(getting the exact number) Please HELP
+#Date: Mon, 25 Oct 1999 15:05:08 -0700
+#Message-ID: <3814D414.7B896084@us.oracle.com>
+
+#Here is how to calculate the (integer part of the) square root
+#of a number in a much cleaner way.
+
+sqroot()
+{
+	let arg=$1
+	let root=arg
+	while :
+	do
+		newroot=$(( (root+arg/root)/2 ))
+		(( newroot == root )) && { echo $root; return; }
+		let root=newroot
+	done
+}
+
+sqroot "$@"