Close Help Center ONLYOFFICE Docs Spreadsheet Editor User guides ONLYOFFICE Workspace ONLYOFFICE Groups ONLYOFFICE Docs Mail Server Talk Module ONLYOFFICE Groups Documents Module People Module Commmunity Module CRM Module Projects Module Mail Module Calendar Module ONLYOFFICE Docs All Editors Document Editor Program interface Introducing the Document Editor user interface File tab Home tab Insert tab Layout tab References tab Forms tab Collaboration tab Protection tab View tab Plugins tab Basic operations Create a new document or open an existing one Copy/paste text passages, undo/redo your actions Change color scheme Page formatting Set page parameters Show/hide nonprinting characters Insert section breaks Insert headers and footers Insert date and time Insert page numbers Insert line numbers Insert footnotes Insert endnotes Convert endnotes and footnotes Add bookmarks Add watermark Paragraph formatting Align your text in a paragraph Set up paragraph outline level Select background color for a paragraph Change paragraph indents Set paragraph line spacing Insert page breaks Add borders Set tab stops Create lists Create hanging indents Text formatting Apply formatting presets Set font type, size, and color Apply font decoration styles Copy/clear text formatting Add hyperlinks Insert cross-references Insert a drop cap Operations on objects Insert tables Use formulas in tables Insert images Insert autoshapes Insert charts Insert text objects Insert SmartArt objects Add caption Insert symbols Align and arrange objects on a page Change text wrapping Insert content controls Create a table of contents Add and format a table of figures Insert videos Fillable forms Create fillable forms Filling out a form Mail Merge Use Mail Merge Math equations Insert equations Collaboration Sharing files and folders Co-editing documents in real time Communicating in real time Commenting documents Tracking changes Comparing documents Version history Plugins Plugin manager Edit an image Create and insert diagrams Edit HTML Correct typography Count words Include a video Insert highlighted code Insert references Translate text Extract text from an image Read the text out loud Replace a word by a synonym Upload a document to Wordpress Communicate while editing Make Audio and Video Calls Host and schedule Zoom meetings Use AI to write text Tools and settings View document information Save, download, print your document Advanced settings of Document Editor View settings and navigation tools ONLYOFFICE Document Viewer Search and replace function Spell-checking AutoCorrect features Protecting documents with a password Helpful hints About Document Editor Supported formats of electronic documents Keyboard shortcuts Spreadsheet Editor Program interface Introducing the Spreadsheet Editor user interface File tab Home tab Insert tab Layout tab Formula tab Data tab Pivot Table tab Collaboration tab Protection tab View tab Plugins tab Basic operations Create a new spreadsheet or open an existing one Cut/copy/paste data Undo/redo your actions Add external links to cells Operations with sheets Manage sheets Insert headers and footers Cell text formatting Set font type, size, style, and colors Add hyperlinks Clear text, format in a cell Editing cell properties Add borders Align data in cells Merge cells Change number format Editing rows/columns Add cells Insert or delete cells, rows, and columns Freeze rows and columns Split cells Sort and filter data Use formatted tables Create and edit pivot tables Create slicers for tables Group data Remove duplicates Conditional formatting Data validation Work with functions Insert functions Insert array formulas Use named ranges Watch window Calculate percentages Insert time Switch between languages in a table Operations on objects Insert images Insert charts Insert sparklines Insert and format autoshapes Insert text objects Wrap text Insert SmartArt objects Insert symbols and characters Manipulate objects Math equations Insert equations Collaboration Sharing files and folders Co-editing spreadsheets in real time Managing sheet view presets Communicating in real time Commenting spreadsheets Version history Protecting a spreadsheet Protecting a spreadsheet Allow edit ranges Protecting your spreadsheets with a password Protecting a sheet Protecting a workbook Plugins Plugin manager Edit an image Include a video Insert highlighted code Translate text Replace a word by a synonym Communicate while editing Host and schedule Zoom meetings Use AI to write text Tools and settings View file information Save/print/download your spreadsheet Scale a worksheet Advanced settings of Spreadsheet Editor View settings and navigation tools Search and replace functions Spell-checking AutoCorrect features Get data from TXT/CSV file Helpful hints About Spreadsheet Editor Supported formats of spreadsheets Keyboard shortcuts Presentation Editor Program interface Introducing the Presentation Editor user interface File Tab Home Tab Insert Tab Transitions Tab Animation Tab Collaboration Tab View Tab Plugins Tab Basic operations Create a new presentation or open an existing one Copy/paste data, undo/redo your actions Working with slides Manage slides Set slide parameters Apply transitions Insert footers Preview your presentation Text formatting Insert and format your text Add hyperlinks Create lists Copy/clear formatting Operations on objects Insert and format autoshapes Insert and adjust images Insert and edit charts Insert and format tables Insert SmartArt objects Adding animations Creating a motion path animation Insert symbols and characters Fill objects and select colors Manipulate objects on a slide Align and arrange objects on a slide Math equations Insert equations Collaboration Sharing files and folders Co-editing presentations in real time Communicating in real time Commenting presentations Version history Plugins Plugin manager Edit an image Include a video Insert highlighted code Translate text Replace a word by a synonym Communicate while editing Host and schedule Zoom meetings Use AI to write text Tools and settings View presentation information Save/print/download your presentation Advanced settings of Presentation Editor View settings and navigation tools Search and Replace Function Spell-checking AutoCorrect features Protecting presentations with a password Enable support for video playback in ONLYOFFICE Desktop Editors Helpful hints About Presentation Editor Supported formats of electronic presentations Keyboard shortcuts ONLYOFFICE Mobile Apps ONLYOFFICE Documents for iOS ONLYOFFICE Documents for Android ONLYOFFICE Projects for iOS ONLYOFFICE Web Editors Glossary Video FAQ General Technology Pricing Workspace Enterprise Edition Docs Enterprise Edition Docs Developer Edition ONLYOFFICE Groups Connectors Trial period LOG Function math and trigonometry functions ABS function ACOS function ACOSH function ACOT function ACOTH function AGGREGATE function ARABIC function ASIN function More articles ASINH function ATAN function ATAN2 function ATANH function BASE function CEILING function CEILING.MATH function CEILING.PRECISE function COMBIN function COMBINA function COS function COSH function COT function COTH function CSC function CSCH function DECIMAL function DEGREES function ECMA.CEILING function EVEN function EXP function FACT function FACTDOUBLE function FLOOR function FLOOR.PRECISE function FLOOR.MATH function GCD function INT function ISO.CEILING function LCM function LN function LOG function LOG10 function MDЕTERM function MINVERSE function MMULT function MOD function MROUND function MULTINOMIAL function MUNIT function ODD function PI function POWER function PRODUCT function QUOTIENT function RADIANS function RAND function RANDBETWEEN function RANDARRAY function ROMAN function ROUND function ROUNDDOWN function ROUNDUP function SEC function SECH function SERIESSUM function SIGN function SIN function SINH function SQRT function SQRTPI function SUBTOTAL function SUM function SUMIF function SUMPRODUCT function SUMSQ function SUMX2MY2 function SUMX2PY2 function SUMXMY2 function TAN function TANH function TRUNC function SUMIFS function The LOG function is one of the math and trigonometry functions. It is used to return the logarithm of a number to a specified base. The LOG function syntax is: LOG(x [,base]) where x is a numeric value greater than 0 base is the base used to calculate the logarithm of a number. It is an optional parameter. If it is omitted, the function will assume base to be 10. The numeric value can be entered manually or included into the cells you make reference to. To apply the LOG function, select the cell where you wish to display the result, click the Insert function icon situated at the top toolbar, or right-click within a selected cell and select the Insert Function option from the menu, or click the icon situated at the formula bar, select the Math and trigonometry function group from the list, click the LOG function, enter the required arguments separating them by comma, press the Enter button. The result will be displayed in the selected cell. 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