Geometric meaning of vector point multiplication

Geometric meaning of vector point multiplication

Dot product is also called inner product and scalar product of vector. As the name suggests, the result is a number dot product, which can be used to calculate the angle between two vectors. The formula is as follows: cos (V ^ w) = v.w / | V | w | the geometric meaning of dot product is: the projection of one edge to another multiplied by the length of the other edge