Tangent

Tangent is a very interesting operation. It is the brother of cosine and sine, and involves both of them in its composition. Sine over cosine equals tangent, or opposite over adjacent. As can be assumed from the previous blog post, tangent is found in right triangles. Even more interesting, the tangent graph has asymptotes. Its counterpart is cotangent, or 1/tan on a calculator or in a calculation. However, tangent is also a term used to mean touching at one point.