Hello, sorry to disturb you all, I understood how dot product on vectors work, I mean how they are calculated, like we take the summation of each pair of x1 * y1 until xn * y2 (Please confirm if this is correct :c). But I was wondering, why is it important to know/do that? For example in real-life applications where is that useful, what does it allow us to do?
What does it allows us to see/visualize in a vector space?
reaction for more information.