Complex Modulus/Examples/Tangent of Angle + i

Example of Complex Modulus

 * $\left\vert{\tan \theta + i}\right\vert = \left\vert{\sec \theta}\right\vert$

where:
 * $\theta \in \R$ is a real number
 * $\tan \theta$ denotes the tangent function
 * $\sec \theta$ denotes the secant function.