I am a bit dense when it comes to linear algebra for some reason. I am reviewing math to prepare for a physics grad program, and I am using Mary Boas "Mathematical Methods in the Physical Sciences". She presents the idea of a skew symmetric matrix in the problem set rather than in the text. I searched the topic, and found this wiki article: http://en.wikipedia.org/wiki/Skew-symmetric_matrix it seems to be very thorough but very much written for the math types -- not physicist friendly. Can anyone recommend a good article or youtube video that unpacks this idea for physicists? Mary's treatment of most of the material is wonderful and devoid of most mathematician specific jargon and/or symbols. Something to this effect and which covers the topic would be great.