Video: Fossil: Definition, Types, Characteristics & Examples. Fossils provide scientists with many clues about Earth's history, offering evidence of dinosaurs and strange plants that existed in the past. This lesson will define a fossil, look at different types and characteristics of fossils, and then describe how fossils are formed.
The final result of the dot product process can be: 1  Zero: we don't have any growth in the original direction. 2  Positive number: we have some growth in the original direction. 3  Negative number: we have negative (reverse) growth in the original direction.
Dot Product. The dot product, or scalar product, of two vectors is equal to the sum of the products of the corresponding coordinates in each vector. If a = (x,y,z) and b = (u,v,w), then the dot product is aÂ·b = x u + y v + z*w. vector is a quantity with magnitude and direction. For example a wind speed vector says how fast the wind is blowing, as well as in what direction. The easiest way to calculate the angle between two different vectors is by using the dot product.