As the formal definition of vectors and scalars have already been mentioned, I’m going to give an easy example.
Vectors can be used to classify things. All kinds of things. Let’s say you want to sell a house. Criteria for advertising are location, size, age, price.
In this model, any House can be described with a vector.
Also, this is an example where dimensions higher than 3 pop up. Our house has 4 parameters, so it’s a 4 dimensional vector.
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