Use your current version of Help-Database for actual and detailed references.

@AttachmentModifiedTimes

Returns a datetime that displays the date on which the file attachment associated with the current document was last modified. If the document contains more than one file attachment, returns the modification dates in a datetime list.
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@BusinessDays

Returns the number of business days in one or more date ranges.
@BusinessDays( startDates ; endDates ; daysToExclude ;datesToExclude )
@BusinessDays([01/01/2001]; [12/31/2001]; 1 : 7;[11/23/2001] : [12/25/2001]))
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@CheckFormulaSyntax

Checks a block of commented out formula language code for errors. 
Enclose the formula code in braces ({}) to comment out the code.
@CheckFormulaSyntax(formulaText)
Returns "1" if the formula has no errors, 
else returns the text list "errorMessage" : "errorLine" : "errorColumn" : "errorOffset" : "errorLength" : "errorText" 
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@Compare

Compares the alphabetic order of the elements in two lists pair-wise.
@Compare( textlist ; textlist ; [ options ] )
example:
list := "Boston" : "Tokyo" : "Moscow" : "N" : "n";
@text(@compare(list; "N"; [CaseInsensitive]));
Return value
0 if the elements in the two lists are equal
-1 if the element in the first list is less than the element in the second list. 
1 if the element in the first list is greater than the element in the second list. 
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@ConfigFile

Returns the file path for the initialization file for Lotus Notes (notes.ini). 
Example: C:\Lotus\Notes\notes.ini
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@Count

@Count( list )
Calculates the number of text, number, or time­date values in a list. 
This function always returns a number to indicate the number of entries in the list.
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@DocLock

@DocLock ( [ options ] )
Locks, unlocks, returns the locked status of the current document, 
or indicates if a database has document locking enabled.
options: [LOCK] [UNLOCK] [STATUS] [LOCKINGENABLED]
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@DocOmittedLength

Returns the approximate number of bytes a truncated document lost during replication. The bytes are the total number of bytes per attachment, OLE object, large rich text field, or non-summary items that were too large, according to the replication settings for the database, to be replicated.
Example: when used as a column formula, returns the total size of the document:
@DocLength + @DocOmittedLength
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@EditUserECL

Displays the "Workstation Security: Execution Control List" dialog box, 
which allows you to change your personal ECL for the current workstation.
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@Eval

@Eval(textExpressions)
At run-time, compiles and runs each element in a text expression as a formula. 
Returns the result of the last formula expression in the list 
or an error if an error is generated by any of the formula expressions in the list. 
Example: input := {FIELD comment := @Prompt([OKCANCELEDIT];"Input";"Input a value"; "Default");};
@Eval(input);
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@FileDir

@FileDir( pathname)
Returns the directory portion of a path name, that is, the path name minus the file name.
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@FloatEq

@FloatEq( number ; number ; confidenceRange )
Compares two numbers for equality within a confidence range.
confidenceRange: The amount within which the numbers must be equal. Defaults to 0.0001.
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@For

@For( initialize ; condition ; increment ; statement ; ... )
Loop on statements
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@GetAddressBooks

@GetAddressBooks( [options ] )
Returns a list of the address books associated with a client (if the current database is local) or server.
options: 
Keyword. The following keywords are optional arguments for this @function: [TITLES] [FIRSTONLY] 
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@GetCurrentTimeZone

 Returns the current operating system's time zone settings in canonical time zone format.
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@GetField

Returns the value of a specified field.
@GetField ( fieldName ) 
see also @GetDocField( documentUNID ; fieldName )
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@GetFocusTable

Returns the name, current row, or current column of the table that is in focus.
@GetFocusTable ( [ tableInfoRequest ] ) 
tableInfoRequest keywords: 
[CELLROW] [CELLCOLUMN] [TABLENAME] 
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@GetHTTPHeader

In a Web application, returns the value of an HTTP header from the browser client request being processed by the server.
@GetHTTPHeader( requestHeader )
The name of a request-header field, for example, "From," "Host," or "User-Agent."
example:
User-Agent: Mozilla 4.0 (X; I; Linux-2.0.35i586)
Host: mylinuxbox.ibm.com
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@GetViewInfo

Returns a view attribute
@GetViewInfo ( [ attribute ] ; column ) 
attributes:
Keyword. Must be enclosed in brackets
[CalendarViewFormat] [ColumnValue] [IsCalViewTimeSlotOn]
examples:
@GetViewInfo([IsCalViewTimeSlotOn]) = @True |
@GetViewInfo([CalendarFormat]) = 30
@GetViewInfo([ColumnValue]; 4) = "Task"
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@HardDeleteDocument

 In an agent that runs a formula, @HardDeleteDocument permanently removes the document currently being processed from the database if the database has soft deletions enabled. 
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@HashPassword

Encodes a string
@HashPassword creates a more secure password than the @Password function does.
@HashPassword(string)
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@Hour

Returns the number of the hour in the specified time­date.
@Hour( timeDateValue )
@Hour([9:30])    returns 9
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@IfError

Returns a null string ("") or the value of an alternative statement if a statement returns an error.
@IfError( statement1 ; statement2 )
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@IsNull

 Tests for a null value. Returns true only if a value is a single text value that is null, otherwise it returns false, returns false if the value is an error.
@IsNull( value )
Example: @If(@IsNull(OriginalList); @Nothing; ....
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@IsVirtualizedDirectory

Indicates whether virtualized directories are enabled for the current server.
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@LDAPServer

Returns the URL and port number of the LDAP listener in the current domain. Notes looks for this information in several places, following this search sequence:
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@Nothing

Use with an @Transform formula. 
Returns no list element (reducing the return list by one element). Not valid in any other context.
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@OrgDir

In a Service Provider (xSP) environment, returns the name of the subdirectory for the company with which the currently authenticated user is registered. Lotus Notes/Domino retrieves this information from the organization's certifier document.
Example:
@Command([FileOpenDatabase];@ServerName + ":" + @OrgDir + "\\" + @DbName[2])
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@ReplicaID

Returns the replica ID of the current database.
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@ServerAccess

Checks if a specified user has a specified administrative access level to a server.
@ServerAccess( [ access ] ; userName ; serverName )
access example: 
[ACCESS] [CREATEDATABASE] [CREATEREPLICA] [CREATETEMPLATE][VIEWONLYACCESS] + more...
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@ServerName

Returns the name of the server containing the current database. 
When the database is local, returns the user name
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@SetHTTPHeader

In a Web application, sets the value of HTTP headers in the response being generated by the server for the browser client.
@SetHTTPHeader( responseHeader ; value )
example: @SetHTTPHeader("Set-Cookie"; "SHOP_CART_ID=4646")
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@SetViewInfo

In Standard Outline views, filters a view to display only documents from a specified category. In Calendar views, filters a view to display only document that contain a specified string in a specified column.
In a Standard Outline view:
@SetViewInfo( [SETVIEWFILTER] ; filterString ; columnName ; isCategory ) 
In a Calendar view:
@SetViewInfo( [SETVIEWFILTER] ; filterString ; columnName ; exactMatch ) 
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@Sort

Sorts a list.
@Sort( list ; [ order ]; customSortExpression )
list: Text, number, or time-date list. 
order:[ACCENTSENSITIVE][ACCENTINSENSITIVE][ASCENDING] + more...
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@StatusBar

Writes a message or messages to the status bar.
@StatusBar( statusBarText )       @StatusBar("Hello world for example")
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@ThisName

Returns the name of the current field.
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@ThisValue

 Returns the name of the current field.
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@TimeMerge

Builds a time-date value from separate date, time, and time zone values.
@TimeMerge( date; time ; timeZone )
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@TimeToTextInZone

Converts a time-date value to a text string, incorporating time zone information.
@TimeToTextInZone( timeDate ; timeZone ; formatString )
formatString: D0 Y, M, D
D2 Month and day, D3 Month and year and more....
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@TimeZoneToText

Converts a canonical time zone value to a text string.
@TimeZoneToText( timeZone ; formatString )
formatString: S Short time zone string, eg: "GMT-08:00"
formatString: A Alias for local time zone.
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@ToTime

Converts a value with a data type of text or time to a date-time value.
@ToTime(value)
example: @ToTime("08/29/01")
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@Transform

Applies a formula to each element of a list and returns the results in a list.
@Transform( list ; variableName ; formula )
example: @Transform(OriginalList; "x"; @If(x >= 0; @Sqrt(x); -@Sqrt(@Abs(x))))
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@UpdateFormulaContext

Updates the context of a formula to the Notes client window currently being accessed by the code. For example, if the code accesses a new form called "Response" by using @Command([Compose]:"Response", @UpdateFormulaContext switches the context of the formula to this new form. Any subsequent functions in the code execute in the context of the Response document, not the current document.
This function is only valid in the Notes client
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@URLDecode

Decodes a URL string into regular text.
@URLDecode( decodeType ; token )
decodeType: "Domino" or "Platform"
Example: It returns "Employee/My Database" 
if the token field contains "Employee%2FMy%20Database.nsf."
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@URLEncode

Encodes a string into a URL-safe format.
@URLEncode( encodingFormat ; token )
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@UrlQueryString

In a Web application, returns the current URL command and parameters, 
or the value of one of the parameters.
@UrlQueryString( parameterName )
example: http://www.acme.com/db.nsf?OpenForm&ID=986574&Category=Golf
returns: "OpenForm":"ID=986574":"Category=Golf"
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@VerifyPassword

Compares two passwords.
@VerifyPassword( password ; password )
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@WebDbName

Returns the name of the current database encoded for URL inclusion.
example: @URLOpen(@WebDbName + "/View+A?OpenView")
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@While

Executes one or more statements iteratively while a condition remains true. Checks the condition before executing the statements.
@While( condition ; statement ; ... )
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