Dear Tampairatruangrit:
Thank you for your assignment, however I am not sure how much you understand the content of it.
This is on eof the good opportunities how little you know about engineering. as far as you are majoring you must know more about basic knowledge in Engineering. From this point of view, I was much discouraged with CMU students. You are not so much highly motivated to study. A little bit sad fro me. Everybody send tha same content for assignment, however how much you understand and know the contents are not known for me. Please don't make me sad please.