Homonym: Differential (Difference)
A "differential" refers to a mathematical concept that measures how a function changes as its input changes. It is often used in calculus to find the slope of a curve at a specific point, helping to understand how one quantity varies with another. The differential is represented as dy for a small change in the output and dx for a small change in the input.
In engineering and mechanics, a differential is a device that allows for the distribution of power to the wheels of a vehicle, enabling them to rotate at different speeds. This is crucial for smooth turning and handling, especially in vehicles like cars and trucks. The differential helps maintain traction and stability while driving.