-bash-4.3$ ./sqroot 12
sqroot(12) is 3.4641
-bash-4.3$ ./sqroot 92.6
sqroot(92.6) is 9.62289
-bash-4.3$ ./sqroot -5
negative: -5
-bash-4.3$ ./sqroot 40 17002.8 -12.7 25 625 1
sqroot(40) is 6.32456
sqroot(17002.8) is 130.395
negative: -12.7
sqroot(25) is 5
sqroot(625) is 25
sqroot(1) is 1
-bash-4.3$ ./sqroot 0
sqroot(0) is 0
-bash-4.3$ ./sqroot
usage: sqroot value [value ...]