Actually, I am going to abandon all the above and start with this fresh!
Please look out for my back, let me know if I am doing something wrong. thanks!
Here's the API:
http://commons.apache.org/math/apidocs/org/apache/commons/math/special/Gamma.html
Here's the download site:
http://commons.apache.org/logging/download_logging.cgi
Step 1:
I downloaded under binaries
commons-logging-1.1.1-bin.tar.gz
Step 2:
unzip the folder, there are 5 .jar, I dragged commons-logging-1.1.1-sources.jar to my reference library. ONLY this one, just to try.
Step 3:
add to external in eclipse.
Now how do I import it? What should I type import? co. what is going on?!