Hi all,

Before I hit Google for what I needed I thought I'd ask here for some recommendations.

I went to an interview for a job yesterday and they sprung a high level maths test on me. Unfortunately, the first question I had never seen the items in the question before (something about if something had a speed of 2pi per sec how long would it take to do a 360 degree turn). The second I recognised was all about vectors - normalising them and then finding a heading from one or something like that.

So in the off chance I get a 2nd interview I need to revise my vectors. Can anyone recommend a good site or two? I've got a book here (http://www.amazon.co.uk/exec/obidos/ASIN/0201609215/qid%3D1140777394/202-0751985-8824616) with some information on vectors etc. (this is what I used at university) but I really need a more simpler approach. This seems like being thrown in the deep end really.

360 degrees = 2 pi radians, which means that if something is travelling at the speed of 2 pi radians a second, it will need 1 second to make 2 pi radians, which is 360 degrees. Does this make sense?

Vectors are what we learned in Linear Algebra 1 at college. It seems Linear Algebra in USA works with matrices only, so I guess you can't use that. However, try searching for "vector spaces". I found this: http://www.ping.be/~ping1339/vect.htm which seems like a nice quick tutorial on vectors.

There is also some information here:
http://faculty.ccp.cc.pa.us/faculty/dsantos/linearalgebra.html

A brief "reminder" of vectors can be found in the beginning pages of http://www.openmathtext.org/lecture_notes/vector_calculus_book2.pdf

Also, check out http://www.openmathtext.org/lecture_notes/new_linearalgebra.pdf