dot product

The dot product essentially tells us how much of the force vector is applied in the direction of the motion vector.

From Textbooks ● Mar. 30, 2016

Note that if u and v are two-dimensional vectors, we calculate the dot product in a similar fashion.

From Textbooks ● Mar. 30, 2016

This property is a result of the fact that we can express the dot product in terms of the cosine of the angle formed by two vectors.

From Textbooks ● Mar. 30, 2016

Going back to the fruit vendor, let’s think about the dot product, q · p.

From Textbooks ● Mar. 30, 2016

Direction angles are often calculated by using the dot product and the cosines of the angles, called the direction cosines.

From Textbooks ● Mar. 30, 2016