Secant Calculator Formula

The Secant Calculator Formula calculator can be used to calculate the secant of an angle in degrees or radians. The secant function is the reciprocal of the cosine function.

Input Parameters

Calculation Results

Calculation Formula

sec(θ) = 1 / cos(θ)

Where:
θ = angle in degrees or radians
sec(θ) = secant of the angle θ
cos(θ) = cosine of the angle θ

Result

Secant of the angle: -

Secant Calculator Formula Calculator Usage Guide

Learn how to use the Secant Calculator Formula calculator and its working principles

How to Use the Secant Calculator

  1. Enter the angle value in the input field.
  2. Select the angle unit (degrees or radians).
  3. Click the "Calculate" button to compute the secant of the angle.
  4. The result will be displayed in the result section.

Understanding the Secant Function

The secant function (sec) is the reciprocal of the cosine function. It is defined as:

sec(θ) = 1 / cos(θ)

This means that the secant of an angle is equal to 1 divided by the cosine of that angle.

Examples

  • sec(0°) = 1 / cos(0°) = 1 / 1 = 1
  • sec(30°) = 1 / cos(30°) ≈ 1 / 0.8660 ≈ 1.1547
  • sec(90°) = 1 / cos(90°) = 1 / 0 = undefined (undefined)

Important Notes

The secant function has vertical asymptotes at angles where the cosine is zero, such as 90°, 270°, etc. In these cases, the secant value is undefined.