Diabetes happens when one of the following occurs: 1  When the pancreas does not produce any insulin. 2  When the pancreas produces very little insulin. 3  When the body does not respond appropriately to insulin, a condition called insulin resistance..
Vector Calculus: Understanding the Dot Product. Think of the dot product as directional multiplication. Multiplication goes beyond repeated counting: it's applying the essence of one item to another. Complex multiplication combines rotations.
A vector has magnitude (how long it is) and direction: Here are two vectors: They can be multiplied using the Dot Product (also see Cross Product). The Dot Product gives a number as an answer (a scalar, not a vector).