1 files changed, 2 insertions, 4 deletions
diff --git a/pi.awk b/pi.awk
index 7ecc4ab..cb476ac 100644
--- a/pi.awk
+++ b/pi.awk
@@ -1,3 +1,4 @@
+#! /usr/bin/awk -f
 
 ### pi.awk, https://en.wikipedia.org/wiki/Pi
 # In 1706 John Machin used the Gregory–Leibniz series to produce an algorithm
@@ -15,10 +16,7 @@ function pi() {
 }
 
 BEGIN {
-    if (ARGV[1] > 0)
-        fig = ARGV[1]
-    else
-        fig = 6
+    (ARGV[1] > 0) ? fig = ARGV[1] : fig = 6
     str = "%." fig "g\n"
     printf(str, pi())
 }