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

Data Analysis

  • Filter Data Based on Date in Excel
  • Working With Tables in Excel
  • How To Insert and Customize Sparklines in Excel
  • How to Sort by Color in Excel
  • Chart Axes in Excel

References

  • Offset in Excel
  • Excel Advanced Lookup using Index and Match Functions
  • Perform case-sensitive Lookup in Excel
  • Left Lookup in Excel
  • How to get relative row numbers in a range in Excel

Data Validations

  • Excel Data validation unique values only
  • Excel Data validation number multiple 100
  • Excel Data validation don’t exceed total
  • Excel Data validation date in next 30 days
  • 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Your email address will not be published.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 return blank in place of #DIV/0! error in Excel
  • How to use Excel OR Function
  • OR function: Description, Usage, Syntax, Examples and Explanation
  • Invoice status with nested if in Excel
  • Nested IF function example in Excel

Date Time

  • Count birthdays by month in Excel
  • Get work hours between dates custom schedule in Excel
  • Calculate total hours that fall between two times in Excel
  • How to get year from date in Excel
  • Get last weekday in month in Excel

Grouping

  • Group arbitrary text values in Excel
  • Calculate conditional mode with criteria in Excel
  • Map text to numbers in Excel
  • Group times into unequal buckets in Excel
  • Categorize text with keywords in Excel

General

  • Excel Operators
  • Advanced Number Formats in Excel
  • Delete Blank Rows at Once in Excel
  • How to password protect excel sheet?
  • How to get original price from percentage discount in Excel
© 2025 xlsoffice . All Right Reserved. | Teal Smiles | Abbreviations And Their Meaning