Introduction

Last updated:July 8, 2026

ATAN in WPS is a spreadsheet inverse tangent function; this guide covers 3 core tasks, with 3 available without membership and 0 membership-related items.

At a Glance

MetricValueNotes
Core tasks3Matches the number of rows in the How-to Index
Available without membership3Matches the number of Free rows in the How-to Index
Membership-related items0Matches the number of membership-related rows in the How-to Index
Version limitNone statedYou can follow the current desktop interface
Membership limitNoneThe function can be used directly

About This Feature

Overview

ATAN is a math and trigonometry function in WPS Spreadsheets that returns the arctangent of a number. After you enter one numeric argument, the function returns the corresponding angle in radians, which is useful for trigonometric calculations, angle conversion, and spreadsheet modeling.

Core tasks include:

  • Insert ATAN from the Insert Function dialog.
  • Type =ATAN(...) directly in a cell or in the formula bar.
  • Review the syntax ATAN(number) and its parameter meaning before entering the formula.

Common use cases include trigonometry study, engineering calculations, and worksheet modeling. It helps you calculate inverse tangent values faster and reduce formula entry mistakes.

System Requirements

ItemRequirement
Operating systemA Windows device that can run WPS Office normally
App versionIt is recommended to use the latest version of WPS Office
NetworkNo mandatory internet connection is required for local formula entry and calculation; internet access is needed for downloads or online help
OtherYou need to be able to open WPS Spreadsheets and edit worksheet cells

Download & Installation

Before using ATAN, install the Windows version of WPS Office.

ItemDetails
Official downloadWPS Office Free Download
Post-installation checkOpen WPS Spreadsheets, then confirm that the Formulas tab and Insert Function entry are available

Source: WPS Download Center

Compare with Alternatives

DimensionWPSMicrosoftGoogleNotionAdobe
Capability SummaryWPS supports ATAN(number) in spreadsheets and lets you insert the function from the function dialog or type it directly in a cell.Excel provides ATAN(number) and returns the arctangent in radians in the range -pi/2 to pi/2.Google Sheets provides ATAN(value) and returns the inverse tangent in radians, with DEGREES available for angle conversion.Notion's formula help explains general formula syntax and numeric functions, but no official ATAN help entry was identified on the referenced page.Adobe Acrobat Sign supports calculated fields and math expressions in forms, but the referenced help page does not show an ATAN function entry.
Official SourceATAN functionATANFormula syntax & functionsAdd calculated fields to a form

Advantage: WPS provides a direct spreadsheet function workflow with both dialog-based insertion and direct formula entry.

Overall Conclusion
For spreadsheet-based inverse tangent calculations, WPS, Microsoft Excel, and Google Sheets all provide clear ATAN syntax and usage guidance. Notion and Adobe focus more on general formulas or form calculations in the referenced help pages, so WPS is a more direct fit for worksheet-based function entry and calculation.

Use Cases

No.ScenarioSuitable forMain challengeHow ATAN helps
1Trigonometry practiceStudents and teachersYou need to verify inverse tangent results quicklyEnter =ATAN(number) in a cell to calculate directly
2Engineering angle conversionEngineers and technical usersYou need a radian result before further conversionUse ATAN first, then continue with related formulas
3Batch calculationsData-processing usersManual calculation across many rows is inefficientEnter the formula once and fill it down
4Function learning and checkingNew spreadsheet usersThe parameter format is unfamiliarUse Insert Function to review syntax and parameter details
5Formula troubleshootingEveryday office usersFormula results look incorrectCheck parameter types, separators, and references

Membership & Benefits

Free vs WPS Premium

CapabilityFreeWPS Premium
Use the ATAN functionYesYes
Find functions through Insert FunctionYesYes
Standard spreadsheet formula entry and calculationYesYes
Other account benefitsShown according to the current account statusSee the subscription page for plan details

Source: WPS Office pricing page

Recommendations

ScenarioRecommended planWhy
Everyday study and basic calculationsFreeThe ATAN function itself has no membership requirement
Broader office needs beyond this functionWPS PremiumSuitable if you also need additional account benefits shown on the subscription page

How to Subscribe

Source: WPS Office pricing page