Tangent - Math
https://www.math.net/tangent
Tangent. Tangent, written as tan(θ), is one of the six fundamental trigonometric functions.. Tangent definitions. There are two main ways in which trigonometric functions are typically discussed: in terms of right triangles and in terms of the unit circle.The right-angled triangle definition of trigonometric functions is most often how they are introduced, followed by their definitions in ...