1 files changed, 2 insertions, 1 deletions
diff --git a/gaussian.awk b/gaussian.awk
index ef81b68..48c3f9a 100644
--- a/gaussian.awk
+++ b/gaussian.awk
@@ -6,7 +6,8 @@
 
 BEGIN {
 
-    N = ARGV[1]
+    ARGV[1] ? N = ARGV[1] : N = 0
+    ARGV[2] ? OFMT = "%." ARGV[2] "g" : OFMT = "%g"
     M = 0.5*(N - 1)
 
     # sigma <= 0.5