Tangent

Tangent is a mathematical function related to right-angled triangles and circles. In a right triangle, it compares the length of the side opposite an angle to the side adjacent to that angle, essentially measuring how steep or sloped an angle is. On the unit circle, tangent is the ratio of the y-coordinate to the x-coordinate for a point at a given angle. It helps in understanding angles and their relationships, especially in trigonometry, and is widely used in fields like engineering, physics, and navigation for analyzing angles and slopes.