Question

what is an inner product ? to what kind of vectors is it applicable ?

Answer 1

This is another name of the dot product. As far as my math knowledge goes, it is applicable to all vectors.

Answer 2

I would rather say that the dot product is a special case of an inner product.

More info here:

http://en.wikipedia.org/wiki/Inner_product_space

Examples

http://en.wikipedia.org/wiki/Inner_product_space#Examples

Answer 3

could u please give a better link. the info in wiki is so esoteric that sometimes it freaks me out

Answer 4

Give me a less esoteric question first...:-)