Skip to content
Free Excel Tutorials
  • Home
  • Excel For Beginners
  • Excel Intermediate
  • Advanced Excel For Experts

Data Analysis

  • How to calculate current stock or inventory in Excel
  • Add Outline to Data in Excel
  • Conflicting Multiple Conditional Formatting Rules in Excel
  • How to Use Solver Tool in Excel
  • How To Remove Duplicates In Excel Column Or Row?

References

  • How to get address of last cell in range in Excel
  • Find Closest Match in Excel Using INDEX, MATCH, ABS and MIN functions
  • How to get relative column numbers in a range in Excel
  • How to use Excel COLUMN Function
  • How to calculate two-way lookup VLOOKUP in Excel Table

Data Validations

  • Excel Data validation require unique number
  • Excel Data validation date in specific year
  • Excel Data validation number multiple 100
  • Excel Data validation with conditional list
  • Data validation must not exist in list

SEC function: Description, Usage, Syntax, Examples and Explanation

by

What is SEC function in Excel?

SEC function is one of the Math and Trig functions in Microsoft Excel that returns the secant of an angle.

Syntax of SEC function

SEC(number)

The SEC function syntax has the following arguments.

Number: Number is the angle in radians for which you want the secant.

SEC formula explanation

  • The absolute value of number must be less than 2^27.
  • If the angle is in degrees, either multiply the angle by PI()/180 or use the RADIANS function to covert the angle to radians.
  • If number is outside of its constraints, SEC returns the #NUM! error value.
  • If number is a non-numeric value, SEC returns the #VALUE! error values.

Example of SEC function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Formula Description Result
=SEC(45) Returns the secant of a 45 degree angle. 1.90359
=SEC(30) Returns the secant of a 30 degree angle. 6.48292

Post navigation

Previous Post:

TRUE function: Description, Usage, Syntax, Examples and Explanation

Next Post:

Excel Pie Chart

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Learn Basic Excel

Ribbon
Workbook
Worksheets
Format Cells
Find & Select
Sort & Filter
Templates
Print
Share
Protect
Keyboard Shortcuts

Categories

  • Charts
  • Data Analysis
  • Data Validation
  • Excel Functions
    • Cube Functions
    • Database Functions
    • Date and Time Functions
    • Engineering Functions
    • Financial Functions
    • Information Functions
    • Logical Functions
    • Lookup and Reference Functions
    • Math and Trig Functions
    • Statistical Functions
    • Text Functions
    • Web Functions
  • Excel VBA
  • Excel Video Tutorials
  • Formatting
  • Grouping
  • Others

Logical Functions

  • How to use Excel TRUE Function
  • How to use Excel FALSE Function
  • OR function: Description, Usage, Syntax, Examples and Explanation
  • Extract multiple matches into separate rows in Excel
  • How to use Excel XOR Function

Date Time

  • HOUR function: Description, Usage, Syntax, Examples and Explanation
  • How to calculate Next working/business day in Excel
  • Two ways to sum time over 30 minutes in Excel
  • Count dates in current month in Excel
  • Display the current date in Excel

Grouping

  • How to randomly assign people to groups in Excel
  • If cell contains one of many things in Excel
  • Group times into unequal buckets in Excel
  • Map inputs to arbitrary values in Excel
  • How to randomly assign data to groups in Excel

General

  • Convert column number to letter in Excel
  • Check if multiple cells have same value in Excel
  • How to test a range for numbers in Excel
  • List sheet names with formula in Excel
  • How to add sequential row numbers to a set of data in Excel
© 2026 xlsoffice . All Right Reserved. | Teal Smiles | Abbreviations And Their Meaning