- 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.
southbound on Bellingham Subdivision
southbound on Interstate 5
Washington Trails Association
- Langus Riverfront Park (wta.org)
Just across the Snohomish River from the city of Everett sits a small park with two loop hike options on three miles of paved trail.
