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include Math
puts sqrt(91);
module Me
def sqrt(a)
puts a*a;
return a*a;
end
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phpRPC + Ruby + Arduino = 遠³Ì¿ØÖÆLED開關(?)
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To get it done is not easy. I spent a whole day to figure out the various compatibility issues along the way out.
Now there still might be potential issues, but it works by my rough test.
Step 1: Install Apache Cassandra
You may know that the Ruby gem cassandra will do it for you.
  ......
ת Adding Sound to Your Ruby Apps
Have you ever thought about including sounds in your Ruby application? Used sparingly, sound may enhance your applications by adding audio cues or a custom touch. You could, for example, play a beep or chime that announces the completion of a lengthy process. Per ......