Comment by Dariusz R on March 5, 2013 at 12:36pm

you mic is very low. could you replay with proper louder voice, please?

thanks

Comment by talisman on March 6, 2013 at 1:28am

this is a very well done video imo.  very clear explanations, i m sure many people will find this very useful.  you have a natural and effective teaching style

Comment by colinwbarnes on March 13, 2013 at 11:39am

Dear teacher...well done!...very helpful indeed.

       Many thnks/colin

P.S.  headphones sorts out the sound problem 

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