Lecture 2b -- Math with Vectors

This video reviews simply math with vectors including addition, subtraction, dot products, cross products, and triple products. Each of these math operations are visualized to give a viewer an intuitive feel of the operation.

[TheSabri]

Thank you, Sir! A very intuitive understanding of dot and cross product.

[hertzkilowatt]

I believe Vector C (Cross Product of A and B) is pointed in the opposite direction in the diagram for A X B.

[osmankhalil]

i really had hard time understanding the cross product until i found a video for bbc about it, i understand that cross product is kind of vector combination that happens naturally, like the deflection of electron beam which represent a vector by the magnetic force which is another vector, this combination gives a third vector in the direction of deflection ... but i can't understand it like the area formed by it .. and it's used in electromagnetism like the curl of field to get the direction of rotation, but i don't know what exactly the physical meaning, but maybe the vector field is combined with the angular velocity to give another vector?