Boxlang 1.x Stable Released
BoxLang : A Modern Dynamic JVM Language
LogoLogo
APIDocsDownloadTrySourceSupport
  • Introduction
    • Contributing Guide
    • Release History
      • 1.2.0
      • 1.1.0
      • 1.0.1
      • 1.0.0
      • RC Stage
        • 1.0.0-RC.1
        • 1.0.0-RC.2
        • 1.0.0-RC.3
      • Beta Stage
        • 1.0.0-Beta27
        • 1.0.0-Beta26
        • 1.0.0-Beta25
        • 1.0.0-Beta24
        • 1.0.0-Beta23
        • 1.0.0-Beta22
        • 1.0.0-Beta21
        • 1.0.0-Beta20
        • 1.0.0-Beta19
        • 1.0.0-Beta18
        • 1.0.0-Beta17
        • 1.0.0-Beta16
        • 1.0.0-Beta15
        • 1.0.0-Beta14
        • 1.0.0-Beta13
        • 1.0.0-Beta12
        • 1.0.0-Beta11
        • 1.0.0-Beta10
        • 1.0.0-Beta9
        • 1.0.0-Beta8
        • 1.0.0-Beta7
        • 1.0.0-Beta6
        • 1.0.0-Beta5
        • 1.0.0-Beta 4
        • 1.0.0-Beta3
        • 1.0.0-Beta2
    • About This Book
      • Authors
  • Getting Started
    • Overview
      • Multi-Runtime
      • Instructions & Interpreters
      • CommandBox CLI
      • Quick Syntax Guide
        • Differences From CFML
      • Frequently Asked Questions
      • Running ColdFusion/CFML Apps
        • Migrating from Adobe ColdFusion
        • Migrating From Lucee CFML
    • Installation
      • Modules
    • Running BoxLang
      • AWS Lambda
      • CommandBox
      • Chromebooks
      • CLI Scripting
      • Docker
      • GitHub Actions
      • JSR-223 Scripting
      • MiniServer
      • Try BoxLang!
    • BoxLang Cloud Servers
      • Microsoft Azure
      • Amazon Web Services
    • IDE & Tooling
      • BoxLang Debugger
        • MiniServer Debugging
        • CommandBox Debugging
      • BoxLang Compiler
      • CFML Feature Audit
      • CFML to BoxLang Transpiler
    • Runtime Configuration
      • Directives
      • Caches
      • Datasources
      • Experimental
      • Executors
      • Logging
      • Maven Integration
      • Modules
      • Security
  • BoxLang Language
    • Program Structure
    • Syntax & Semantics
      • Comments
      • Variables
      • Variable Scopes
      • Operators
      • Null & Nothingness
      • Strings
      • Numbers
      • Dates & Times
      • JSON
      • Arrays
      • Structures
      • Queries
      • Datasources
      • Conditionals
      • Attempts
      • Data Navigators
      • Exception Management
      • Code Locking
      • Closures => Context Aware
      • Lambdas -> Pure Functions
      • Includes
      • Threading
    • Classes & O.O.
      • Properties
      • Functions
      • Static Constructs
      • Final Constructs
      • Abstract Constructs
      • Interfaces
    • Reference
      • API Docs
      • Lexical Elements
        • Scopes and Constants
        • Keywords
        • Operators
        • Literals
        • Comments
        • Tokens
        • Semicolons
        • Identifiers
        • Packages and Imports
        • Java Interoperability
        • Errors
      • Types
        • array
        • class
        • datetime
        • file
        • numeric
        • query
        • stream
        • string
        • struct
        • xml
      • Built-in Functions
        • array
          • ArrayAppend
          • ArrayAvg
          • ArrayClear
          • ArrayContains
          • ArrayContainsNoCase
          • ArrayDelete
          • ArrayDeleteAt
          • ArrayDeleteNoCase
          • ArrayEach
          • ArrayEvery
          • ArrayFilter
          • ArrayFind
          • ArrayFindAll
          • ArrayFindAllNoCase
          • ArrayFindNoCase
          • ArrayFirst
          • ArrayGetMetadata
          • ArrayIndexExists
          • ArrayInsertAt
          • ArrayIsDefined
          • ArrayLast
          • ArrayMap
          • ArrayMax
          • ArrayMedian
          • ArrayMerge
          • ArrayMid
          • ArrayMin
          • ArrayNew
          • ArrayPop
          • ArrayPrepend
          • ArrayPush
          • ArrayRange
          • ArrayReduce
          • ArrayReduceRight
          • ArrayResize
          • ArrayReverse
          • ArraySet
          • ArrayShift
          • ArraySlice
          • ArraySome
          • ArraySort
          • ArraySplice
          • ArraySum
          • ArraySwap
          • ArrayToList
          • ArrayToStruct
          • ArrayUnshift
        • async
          • ExecutorGet
          • ExecutorHas
          • ExecutorList
          • ExecutorNew
          • ExecutorShutdown
          • ExecutorStatus
          • FutureNew
          • IsInThread
          • isThreadAlive
          • IsThreadInterrupted
          • RunAsync
          • ThreadInterrupt
          • ThreadJoin
          • ThreadNew
          • ThreadTerminate
        • binary
          • BinaryDecode
          • BinaryEncode
          • BitAnd
          • BitMaskClear
          • BitMaskRead
          • BitMaskSet
          • BitNot
          • BitOr
          • bitShln
          • bitShrn
          • BitXor
        • cache
          • Cache
          • CacheFilter
          • CacheNames
          • CacheProviders
          • CacheService
        • cli
          • CLIClear
          • CLIExit
          • CLIGetArgs
          • CLIRead
        • conversion
          • DataNavigate
          • JSONDeserialize
          • JSONPrettify
          • JSONSerialize
          • LSParseNumber
          • ParseNumber
          • ToBase64
          • ToBinary
          • ToModifiable
          • ToNumeric
          • ToScript
          • ToString
          • ToUnmodifiable
        • decision
          • ArrayIsEmpty
          • arrayIsEmpty
          • Attempt
          • IsArray
          • IsBinary
          • IsBoolean
          • IsClosure
          • IsCustomFunction
          • IsDate
          • IsDateObject
          • IsDebugMode
          • IsDefined
          • IsEmpty
          • IsFileObject
          • IsIPv6
          • IsJSON
          • IsLeapYear
          • IsLocalHost
          • IsNull
          • IsNumeric
          • IsNumericDate
          • IsObject
          • IsQuery
          • IsSimpleValue
          • IsStruct
          • IsValid
          • IsXML
          • IsXmlAttribute
          • IsXMLDoc
          • IsXMLElem
          • IsXMLNode
          • IsXMLRoot
          • LSIsNumeric
          • structIsEmpty
        • encryption
          • Decrypt
          • DecryptBinary
          • Encrypt
          • EncryptBinary
          • GeneratePBKDFKey
          • GenerateSecretKey
          • Hash
          • Hash40
          • Hmac
        • format
          • BooleanFormat
          • DecimalFormat
          • LSNumberFormat
          • NumberFormat
        • i18n
          • ClearLocale
          • CurrencyFormat
          • GetLocale
          • GetLocaleDisplayName
          • GetLocaleInfo
          • IsCurrency
          • LSCurrencyFormat
          • LSIsCurrency
          • LSParseCurrency
          • ParseCurrency
          • SetLocale
        • io
          • ContractPath
          • CreateTempDirectory
          • CreateTempFile
          • DirectoryCopy
          • DirectoryCreate
          • DirectoryDelete
          • DirectoryExists
          • DirectoryList
          • DirectoryMove
          • DirectoryRename
          • ExpandPath
          • FileAppend
          • FileClose
          • FileCopy
          • FileDelete
          • FileExists
          • FileGetMimeType
          • FileInfo
          • FileIsEOF
          • FileMove
          • FileOpen
          • FileRead
          • FileReadBinary
          • FileReadLine
          • FileSeek
          • FileSetAccessMode
          • FileSetAttribute
          • FileSetLastModified
          • FileSkipBytes
          • FileWrite
          • FileWriteLine
          • GetCanonicalPath
          • GetDirectoryFromPath
          • GetFileInfo
          • getTempFile
        • java
          • CreateDynamicProxy
        • jdbc
          • IsInTransaction
          • IsWithinTransaction
          • PreserveSingleQuotes
          • QueryExecute
          • TransactionCommit
          • TransactionRollback
          • TransactionSetSavepoint
        • list
          • GetToken
          • ListAppend
          • ListAvg
          • ListChangeDelims
          • ListCompact
          • ListContains
          • ListContainsNoCase
          • ListDeleteAt
          • ListEach
          • ListEvery
          • ListFilter
          • ListFind
          • ListFindNoCase
          • ListFirst
          • ListGetAt
          • ListIndexExists
          • ListInsertAt
          • ListItemTrim
          • ListLast
          • ListLen
          • ListMap
          • ListPrepend
          • ListQualify
          • ListReduceRight
          • ListRemoveDuplicates
          • ListRest
          • ListSetAt
          • ListSome
          • ListSort
          • ListToArray
          • ListTrim
          • ListValueCount
          • ListValueCountNoCase
        • math
          • Abs
          • Acos
          • Asin
          • Atn
          • Ceiling
          • Cos
          • DecrementValue
          • Exp
          • Fix
          • Floor
          • FormatBaseN
          • IncrementValue
          • InputBaseN
          • Int
          • Log
          • Log10
          • Max
          • Min
          • Pi
          • PrecisionEvaluate
          • Rand
          • Randomize
          • RandRange
          • Round
          • Sgn
          • Sin
          • Sqr
          • Tan
        • query
          • QueryAddColumn
          • QueryAddRow
          • QueryAppend
          • QueryClear
          • QueryColumnArray
          • QueryColumnCount
          • QueryColumnData
          • QueryColumnExists
          • QueryColumnList
          • QueryCurrentRow
          • QueryDeleteColumn
          • QueryDeleteRow
          • QueryEach
          • QueryEvery
          • QueryFilter
          • QueryGetCell
          • QueryGetResult
          • QueryInsertAt
          • QueryKeyExists
          • QueryMap
          • QueryNew
          • QueryPrepend
          • QueryRecordCount
          • QueryReduce
          • QueryRegisterFunction
          • QueryReverse
          • QueryRowData
          • QueryRowSwap
          • QuerySetCell
          • QuerySetRow
          • QuerySlice
          • QuerySome
          • QuerySort
        • runtime
          • BoxLangBIFProxy
        • scheduler
          • SchedulerGet
          • SchedulerGetAll
          • SchedulerList
          • SchedulerRestart
          • SchedulerShutdown
          • SchedulerStart
          • SchedulerStats
        • string
          • Ascii
          • CamelCase
          • Char
          • CharsetDecode
          • CharsetEncode
          • Compare
          • CompareNoCase
          • Find
          • FindNoCase
          • FindOneOf
          • Insert
          • JSStringFormat
          • KebabCase
          • LCase
          • Left
          • ListReduce
          • LJustify
          • LTrim
          • Mid
          • ParagraphFormat
          • PascalCase
          • QueryStringToStruct
          • ReEscape
          • ReFind
          • reFindNoCase
          • ReMatch
          • reMatchNoCase
          • RemoveChars
          • RepeatString
          • Replace
          • ReplaceList
          • ReplaceListNoCase
          • ReplaceNoCase
          • ReReplace
          • reReplaceNoCase
          • Reverse
          • Right
          • RJustify
          • RTrim
          • Slugify
          • SnakeCase
          • SpanExcluding
          • SpanIncluding
          • SQLPrettify
          • StringBind
          • StringEach
          • StringEvery
          • StringFilter
          • StringMap
          • StringReduce
          • StringReduceRight
          • StringSome
          • StringSort
          • StripCR
          • Trim
          • TrueFalseFormat
          • UCase
          • UCFirst
          • Val
          • Wrap
          • YesNoFormat
        • struct
          • StructAppend
          • StructClear
          • StructCopy
          • StructDelete
          • StructEach
          • StructEquals
          • StructEvery
          • StructFilter
          • StructFind
          • StructFindKey
          • StructFindValue
          • StructGet
          • StructGetMetadata
          • StructInsert
          • StructIsCaseSensitive
          • StructIsOrdered
          • StructKeyArray
          • StructKeyExists
          • StructKeyList
          • StructKeyTranslate
          • StructMap
          • StructNew
          • StructReduce
          • StructSome
          • StructSort
          • StructToQueryString
          • StructToSorted
          • StructUpdate
          • StructValueArray
        • system
          • ApplicationRestart
          • ApplicationStartTime
          • ApplicationStop
          • BoxAnnounce
          • BoxAnnounceAsync
          • BoxModuleReload
          • BoxRegisterInterceptionPoints
          • BoxRegisterInterceptor
          • BoxRegisterRequestInterceptor
          • BoxUnregisterInterceptor
          • BoxUnregisterRequestInterceptor
          • CallStackGet
          • CreateGUID
          • CreateObject
          • CreateUUID
          • DE
          • DebugBoxContexts
          • Dump
          • Duplicate
          • echo
          • EncodeForHTML
          • GetApplicationMetadata
          • GetBaseTagData
          • GetBaseTagList
          • GetBaseTemplatePath
          • GetBoxContext
          • GetBoxRuntime
          • GetBoxVersionInfo
          • GetClassMetadata
          • GetComponentList
          • GetContextRoot
          • GetCurrentTemplatePath
          • GetFileFromPath
          • GetFunctionCalledName
          • GetFunctionList
          • GetModuleInfo
          • GetModuleList
          • GetRequestClassLoader
          • GetSemver
          • GetSystemSetting
          • GetTempDirectory
          • GetTickCount
          • htmlEditFormat
          • IIF
          • Invoke
          • IsInstanceOf
          • JavaCast
          • ObjectDeserialize
          • ObjectSerialize
          • PagePoolClear
          • Print
          • Println
          • RunThreadInContext
          • SessionInvalidate
          • SessionRotate
          • SessionStartTime
          • Sleep
          • SystemCacheClear
          • SystemExecute
          • SystemOutput
          • Throw
          • Trace
          • URLDecode
          • URLEncodedFormat
          • writeDump
          • WriteLog
          • WriteOutput
        • temporal
          • ClearTimezone
          • CreateDate
          • CreateDateTime
          • CreateODBCDate
          • CreateODBCDateTime
          • CreateODBCTime
          • CreateTime
          • CreateTimeSpan
          • DateAdd
          • DateCompare
          • DateConvert
          • DateDiff
          • DateFormat
          • DatePart
          • DateTimeFormat
          • Day
          • DayOfWeek
          • DayOfWeekAsString
          • DayOfWeekShortAsString
          • DayOfYear
          • DaysInMonth
          • DaysInYear
          • FirstDayOfMonth
          • GetNumericDate
          • GetTime
          • GetTimezone
          • GetTimezoneInfo
          • Hour
          • Millisecond
          • Minute
          • Month
          • MonthAsString
          • MonthShortAsString
          • Nanosecond
          • Now
          • Offset
          • ParseDateTime
          • Quarter
          • Second
          • SetTimezone
          • TimeFormat
          • Week
          • Year
        • type
          • ArrayLen
          • GetMetaData
          • Len
          • NullValue
          • StringLen
          • StructCount
        • xml
          • XMLChildPos
          • XMLElemNew
          • XMLFormat
          • XMLGetNodeType
          • XMLNew
          • XMLParse
          • XMLSearch
          • XMLTransform
          • XMLValidate
        • zip
          • Compress
          • Extract
          • IsZipFile
      • Components
        • async
          • Thread
        • cache
          • Cache
        • debug
          • Timer
        • io
          • Directory
          • File
        • jdbc
          • ProcParam
          • StoredProc
          • DBInfo
          • ProcResult
          • Query
          • QueryParam
          • Transaction
        • net
          • HTTPParam
          • HTTP
        • system
          • Throw
          • InvokeArgument
          • Application
          • Invoke
          • Abort
          • Include
          • Component
          • Execute
          • Flush
          • SaveContent
          • Output
          • Log
          • Sleep
          • Setting
          • Param
          • Lock
          • Associate
          • Silent
          • ProcessingDirective
          • Trace
          • Exit
          • Dump
          • Loop
        • xml
          • XML
        • zip
          • Zip
      • Exceptions
  • BoxLang Framework
    • Application.bx
    • Asynchronous Programming
    • Caching
      • Cache Service
      • BoxCache Provider
      • Custom Cache Providers
      • Custom Object Stores
      • Custom Eviction Policies
    • File Handling
    • Interceptors
      • Core Interception Points
        • Application Events
        • Cache Service Events
        • Cache Provider Events
        • Cache Object Store Events
        • Datasource Service Events
        • Dump Events
        • Dynamic Object Events
        • Function Invocations
        • HTTP Events
        • Life-cycle Events
        • Logging Events
        • Module Events
        • Module Service Events
        • Object Marshalling Events
        • Query Invocations
        • Runtime Events
        • Request Context Events
        • Scheduler Events
        • Scheduler Service Events
        • Template Invocations
        • Transaction Events
      • Request Interception Points
    • HTTP/S Calls
    • Java Interop
    • JDBC Transactions
    • Modules
      • AI
      • Compat CFML
        • Reference
          • Types
            • array
            • datetime
            • numeric
            • string
            • struct
          • Built-in Functions
            • cache
              • CacheCount
              • CacheGetAsAttempt
              • CacheRegionRemove
              • CacheRemoveAll
              • CachePut
              • CacheRegionExists
              • CacheGetSession
              • CacheGetEngineProperties
              • CacheGet
              • CacheGetDefaultCacheName
              • CacheGetProperties
              • CacheSetProperties
              • CacheGetAllIds
              • CacheIdExists
              • cacheKeyExists
              • CacheRemove
              • cacheDelete
              • CacheGetAll
              • CacheGetMetadata
              • CacheGetOrFail
              • CacheClear
              • CacheRegionNew
            • conversion
              • JSONDeserialize
            • encryption
              • Hash
              • Hash40
            • format
              • HTMLCodeFormat
              • DollarFormat
            • struct
              • DeleteClientVariable
            • system
              • Throw
              • ObjectSave
              • GetFunctionData
              • GetComponentMetadata
              • GetVariable
              • GetTagData
              • GetClientVariablesList
              • GetContextRoot
              • ObjectLoad
              • SetVariable
            • temporal
              • LSWeek
              • LSDayOfWeek
              • LSIsDate
              • DateCompare
              • GetHTTPTimestring
              • LSDateTimeFormat
              • LSDateFormat
              • LSTimeFormat
              • DayOfWeekAsString
              • DayOfWeekShortAsString
              • MonthAsString
              • MonthShortAsString
              • ToLegacyDate
              • createDate
              • LSParseDateTime
              • DateTimeFormat
              • DateFormat
              • TimeFormat
            • type
              • GetMetaData
          • Components
            • net
              • HTTP
      • CSRF
      • ESAPI
      • Evaluating Code
      • FTP
      • Image Manipulation
      • INI Files
      • JDBC
      • Jython
      • Mail
      • Markdown
      • ORM
      • OSHI - Operating System + Hardware
      • Password Encryption
      • PDF
      • Redis
      • UI Forms
      • WDDX
      • Web Support
      • Yaml
  • Extra Credit
    • MVC
    • Dependency Injection
Powered by GitBook
LogoLogo

Social Media

  • X
  • FaceBook
  • LinkedIn
  • YouTube

Bug Tracking

  • Runtimes
  • IDE
  • Modules

Support

  • Professional
  • Community
  • Slack

Copyright & Register Trademark by Ortus Solutions, Corp

On this page

Was this helpful?

Edit on GitHub
Export as PDF

Last updated 16 days ago

Was this helpful?

Returns the arccosine (inverse cosine) of a number

Method Signature

Arguments

Argument
Type
Required
Description
Default

Examples

Angle Cosine of 0.3

Result: 1.2661036727794992

Additional Examples

Related

  1. BoxLang Language
  2. Reference
  3. Built-in Functions
  4. math

Acos

PreviousAbsNextAsin
  • Method Signature
  • Arguments
  • Examples
  • Angle Cosine of 0.3
  • Additional Examples
  • Related
Acos(number=[double])

number

double

true

The number to calculate the arccosine of

acos( .3 );
<bx:set inputValue = .5 >
<bx:output>#aCos( inputValue )#</bx:output>
Run Example
Sqr
Asin
Sgn
Pi
DecrementValue
InputBaseN
Round
Cos
Int
Exp
Ceiling
RandRange
Atn
Fix
Max
Min
Abs
Log
Log10
PrecisionEvaluate
Rand
Floor
Randomize
FormatBaseN
Tan
Sin
IncrementValue