Oops! I forgot my Maths

I have been studying MatLab these few days, going to give a lecture on "Object-Oriented Programming with MatLab" next weeks. But it has been so long since I touched this software, while I was going through the MatLab manuals.

OMG!! I found that I can't fully remember how to deal with Vectors and Matrices... Thinking hard of what are dot product "a . a" and vector cross product " a ^ a"??? Then I come across another term "Row Echelon Form" , then "Complex Numbers" and "EPS"...

All seems so similar, yet got little clue. To think that I used to consider Mathematics during my school days as my pride subject...

Look like this coming week, need more revisions. Now where i can find some reference books???:P