From 93beb31711410183c2d0b1ef7a091272df953a83 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <pks@pks.rocks>
Date: Thu, 29 Mar 2018 23:22:56 +0200
Subject: cma

---
 cma | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 cma

diff --git a/cma b/cma
new file mode 100755
index 0000000..9133a0d
--- /dev/null
+++ b/cma
@@ -0,0 +1,22 @@
+#!/usr/bin/env ruby
+
+require 'trollop'
+
+conf = Trollop::options do
+  banner "cma < <one number per line>"
+  opt :round, "Number of digits after decimal point.", :type => :int, :default => -1
+end
+
+cma = 0.0
+i = 0
+while line = STDIN.gets
+  x = line.to_f
+  cma = cma + ((x - cma)/(i+1))
+  i +=1
+  if conf[:round] >= 0
+    puts cma.round conf[:round]
+  else
+    puts cma
+  end
+end
+
-- 
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