Secant Calculator

Calculate the secant of a number

The calculator will find the secant of the given value in radians or degrees.

The secant $y=\sec(x)$ is such a function that $y=\frac{1}{\cos(x)}$ .

The domain of the secant is $x \ne \frac{\pi}{2} + \pi n, n \in \mathbb{Z}$ , the range is $(-\infty,-1]\cup[1,\infty)$ .

It is an even function.

Find $\sec{\left(\frac{\pi}{4} \right)}$ .

$\sec{\left(\frac{\pi}{4} \right)} = \sec{\left(45^{\circ} \right)} = \sqrt{2}\approx 1.414213562373095$ A

For graph, see the graphing calculator.