What is the dot product exactly? I hear it's the angle that is created where two vectors meet.
This book has this..........
I am trying to find out if these two are two diferent formulas.
where @="dot"
where %=theta
A @ B= Ax "time" Bx + Ay "times" By
and
A @ B= |A| @ |B| "times" COS %
Thank you in advance