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.
The name dot product is derived from the centered dot  Â·  that is often used to designate this operation; the alternative name scalar product emphasizes that the result is a scalar, rather than a vector, which is the case for the vector product in three-dimensional space.