Picnic Point, Washington (Wikipedia)
Picnic Point is a census-designated place (CDP) located in Snohomish County, Washington. The population was 8,809 at the 2010 census. It was formerly part of the Picnic Point-North Lynnwood CDP.- Derivative (Wikipedia)
In mathematics, the derivative shows the sensitivity of change of a function’s output with respect to the input. Derivatives are a fundamental tool of calculus. For example, the derivative of the position of a moving object with respect to time is the object’s velocity: this measures how quickly the position of the object changes when time advances.