X# Runtime and VO SDK Reference

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List of Functions

_accept Function (RT)

_ArrayToObjectArray Function (RT)

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_ObjectArrayToUsualArray Function (RT)

_PrivateCount Function (RT)

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_wait Function (RT)

AAdd Function (RT)

Abs Function (RT)

AbsFloat Function (RT)

AClone Function (RT)

ACloneShallow Function (RT)

ADimPic Function (RT)

ADir Function (RT)

AEval Function (RT)

AEvalA Function (RT)

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Alias0Sym Function (RT)

AllowCollectThread Function (RT)

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Array Function (RT)

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ArrayDeProtect Function (RT)

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Atan2 Function (RT)

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Between Function (RT)

Bin2Date Function (RT)

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BLOBDirectExport Function (RT)

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Bof Function (RT)

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CDoW Function (RT)

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CheckInstanceOf Function (RT)

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cls Function (RT)

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ConcatAtom Function (RT)

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ConcatAtom4 Function (RT)

ConcatAtom5 Function (RT)

ConDate Function (RT)

Cos Function (RT)

Cot Function (RT)

CParamCount Function (RT)

CreateInstance Function (RT)

CSend Function (RT)

CToD Function (RT)

CToDAnsi Function (RT)

Date Function (RT)

Date2Bin Function (RT)

Day Function (RT)

DbApp Function (RT)

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DbAppSdf Function (RT)

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DBClearOrderCondition Function (RT)

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DbCommit Function (RT)

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DbContinue Function (RT)

DbCopy Function (RT)

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DbDriver Function (RT)

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DBF Function (RT)

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DbStruct Function (RT)

DbSymSelect Function (RT)

DbTotal Function (RT)

DbTrans Function (RT)

DbUnLock Function (RT)

DbUnLockAll Function (RT)

DbUpdate Function (RT)

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DebOut Function (RT)

Default Function (RT)

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DirChange Function (RT)

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DoError Function (RT)

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EmptyPSZ Function (RT)

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EmptyUsual Function (RT)

EnableArrayIndexCheck Function (RT)

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ErrorBlock Function (RT)

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Eval Function (RT)

Evaluate Function (RT)

ExecScript Function (RT)

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FieldBlock Function (RT)

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FieldGet Function (RT)

FieldGetAlias Function (RT)

FieldGetArea Function (RT)

FieldGetBytes Function (RT)

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FieldGetSym Function (RT)

FieldName Function (RT)

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FieldPut Function (RT)

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FindClass Function (RT)

Float2Long Function (RT)

FloatFormat Function (RT)

Flock Function (RT)

Floor Function (RT)

Found Function (RT)

FParamCount Function (RT)

FReadLine Function (RT)

FReadText3 Function (RT)

FSeek Function (RT)

FWrite Function (RT)

FWrite3 Function (RT)

FWriteLine Function (RT)

FWriteText Function (RT)

GetColor Function (RT)

GetRTFullPath Function (RT)

GetThreadCount Function (RT)

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Header Function (RT)

InCollect Function (RT)

IndexCount Function (RT)

IndexExt Function (RT)

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IndexKey Function (RT)

IndexOrd Function (RT)

InList Function (RT)

InListExact Function (RT)

Integer Function (RT)

IsAccess Function (RT)

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IsBinary Function (RT)

IsByRef Function (RT)

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IsCodeBlock Function (RT)

IsCurrency Function (RT)

IsDate Function (RT)

IsDateTime Function (RT)

IsDecimal Function (RT)

IsFloat Function (RT)

IsFractional Function (RT)

IsInstanceOf Function (RT)

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IsInt64 Function (RT)

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IsMethod Function (RT)

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IsNil Function (RT)

IsNumeric Function (RT)

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IsString Function (RT)

IsSymbol Function (RT)

IVarGet Function (RT)

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IVarGetSelf Function (RT)

IvarList Function (RT)

IvarListClass Function (RT)

IVarPut Function (RT)

IVarPutInfo Function (RT)

IVarPutSelf Function (RT)

JCDOW Function (RT)

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JCYEAR Function (RT)

LastRec Function (RT)

Len Function (RT)

LOG Function (RT)

Log10 Function (RT)

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MAssign Function (RT)

Max Function (RT)

MaxAtom Function (RT)

MCompile Function (RT)

Mem2String Function (RT)

MemAlloc Function (RT)

MemAtSpecial Function (RT)

MemByte Function (RT)

MemCAlloc Function (RT)

MemChr Function (RT)

MemClear Function (RT)

MemComp Function (RT)

MemCopy Function (RT)

MemCopyString Function (RT)

MemDWord Function (RT)

MemFree Function (RT)

MemGrpAlloc Function (RT)

MemGrpCAlloc Function (RT)

MemGrpClose Function (RT)

MemGrpEnum Function (RT)

MemGrpOpen Function (RT)

MemInt Function (RT)

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MemLong Function (RT)

MemLower Function (RT)

MemMove Function (RT)

MemoTran Function (RT)

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MemSet Function (RT)

MemShort Function (RT)

MemTotal Function (RT)

MemTrace Function (RT)

MemUpper Function (RT)

MemVarBlock Function (RT)

MemVarBlockSym Function (RT)

MemVarClear Function (RT)

MemVarGet Function (RT)

MemVarGetSym Function (RT)

MemVarPut Function (RT)

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MemVarRelease Function (RT)

MemVarTryGet Function (RT)

MemWalk Function (RT)

MemWord Function (RT)

MethodList Function

MethodListClass Function

MExec Function (RT)

Min Function (RT)

MLCount Function (RT)

MLcToPos Function (RT)

MLPos Function (RT)

Mod Function (RT)

Month Function (RT)

MParamCount Function (RT)

MPosToLc Function (RT)

NewIndexLock Function (RT)

NewLocks Function (RT)

NoMethod Function (RT)

NTrim Function (RT)

Object2Array Function (RT)

Object2Float Function (RT)

Oem2AnsiBuff Function (RT)

OOPTree Function (RT)

OOPTreeClass Function (RT)

OrdBagExt Function (RT)

OrdBagName Function (RT)

OrdCondSet Function (RT)

OrdCount Function (RT)

OrdCreate Function (RT)

OrdDescend Function (RT)

OrdDestroy Function (RT)

OrdFor Function (RT)

OrdIsUnique Function (RT)

OrdKey Function (RT)

OrdKeyAdd Function (RT)

OrdKeyCount Function (RT)

OrdKeyDel Function (RT)

OrdKeyGoto Function (RT)

OrdKeyNo Function (RT)

OrdKeyVal Function (RT)

OrdList Function (RT)

OrdListAdd Function (RT)

OrdListClear Function (RT)

OrdListRebuild Function (RT)

OrdName Function (RT)

OrdNumber Function (RT)

OrdScope Function (RT)

OrdSetFocus Function (RT)

OrdSetRelation Function (RT)

OrdSkipUnique Function (RT)

PaletteRGB Function (RT)

Pause Function (RT)

PI Function (RT)

Pow Function (RT)

Psz2String Function (RT)

Psz2Usual Function (RT)

PszAlloc Function (RT)

RddCount Function (RT)

RddInfo Function (RT)

RddList Function (RT)

RddName Function (RT)

RddSetDefault Function (RT)

RddVersion Function (RT)

RecCount Function (RT)

RecNo Function (RT)

RecSize Function (RT)

RegisterAxit Function (RT)

SetAlternate Function (RT)

SetAltFile Function (RT)

SetColor Function (RT)

SetConsole Function (RT)

SetFDateTime Function (RT)

SetFloatDelta Function (RT)

SetPos Function (RT)

SetTextFile Function (RT)

SetTextOutPut Function (RT)

SEval Function (RT)

SEvalA Function (RT)

ShowArray Function (RT)

ShowObject Function (RT)

ShowPrivates Function (RT)

ShowPublics Function (RT)

Sin Function (RT)

SplitPath Function (RT)

StrEvaluate Function (RT)

StrFloat Function (RT)

String2Atom Function (RT)

String2Symbol Function (RT)

StringAlloc Function (RT)

StrInt Function (RT)

StrLong Function (RT)

StrToFloat Function (RT)

StrTran Function (RT)

StrZero Function (RT)

SubS Function (RT)

SubStr Function (RT)

Symbol2String Function (RT)

SysAddAtom Function (RT)

SysAddAtomUpperA Function (RT)

SysCompAtom Function (RT)

SysFindAtom Function (RT)

SysGetAtomName Function (RT)

Tan Function (RT)

TimePsz Function (RT)

TimePsz24 Function (RT)

Today Function (RT)

Tone Function (RT)

ToWord Function (RT)

Transform Function (RT)

TString Function (RT)

Type Function (RT)

Unformat Function (RT)

UnRegisterAxit Function (RT)

Used Function (RT)

UsualType Function (RT)

UsualVal Function (RT)

Val Function (RT)

ValType Function (RT)

VarGet Function (RT)

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VarPut Function (RT)

VarPutSym Function (RT)

Version Function (RT)

VoDbAlias Function (RT)

VoDbAliasSym Function (RT)

VoDbAppend Function (RT)

VoDbBlobInfo Function (RT)

VoDbBof Function (RT)

VoDbBuffRefresh Function (RT)

VoDbClearFilter Function (RT)

VoDbClearLocate Function (RT)

VoDbClearRelation Function (RT)

VoDbClearScope Function (RT)

VoDbCloseAll Function (RT)

VoDbCloseArea Function (RT)

VoDbCommit Function (RT)

VoDbCommitAll Function (RT)

VoDbContinue Function (RT)

VoDbCreate Function (RT)

VoDbDelete Function (RT)

VoDbDeleted Function (RT)

VoDbEof Function (RT)

VoDbEval Function (RT)

VoDbFieldGet Function (RT)

VoDbFieldGetBytes Function (RT)

VoDbFieldInfo Function (RT)

VoDbFieldPut Function (RT)

VoDbFieldPutBytes Function (RT)

VoDbFileGet Function (RT)

VoDbFilePut Function (RT)

VoDbFilter Function (RT)

VoDbFlock Function (RT)

VoDbFound Function (RT)

VoDbGetScope Function (RT)

VoDbGetSelect Function (RT)

VoDbGoBottom Function (RT)

VoDbGoto Function (RT)

VoDbGoTop Function (RT)

VoDbInfo Function (RT)

VoDbJoinAppend Function (RT)

VoDbLastRec Function (RT)

VoDbLocate Function (RT)

VoDbMemoExt Function (RT)

VoDbOrdBagExt Function (RT)

VoDbOrdCondSet Function (RT)

VoDbOrdCreate Function (RT)

VoDbOrdDestroy Function (RT)

VoDbOrderInfo Function (RT)

VoDbOrdListAdd Function (RT)

VoDbOrdListClear Function (RT)

VoDbOrdListRebuild Function (RT)

VoDbOrdSetFocus Function (RT)

VoDbPack Function (RT)

VoDbRddCount Function (RT)

VoDbRddInfo Function (RT)

VoDbRddList Function (RT)

VoDbRddName Function (RT)

VoDbRddSetDefault Function (RT)

VoDbRecall Function (RT)

VoDbRecno Function (RT)

VoDbRecordGet Function (RT)

VoDbRecordInfo Function (RT)

VoDbRecordPut Function (RT)

VoDbRelation Function (RT)

VoDbRlock Function (RT)

VoDbRSelect Function (RT)

VoDbSeek Function (RT)

VoDbSelect Function (RT)

VoDbSetFilter Function (RT)

VoDbSetFound Function (RT)

VoDbSetLocate Function (RT)

VoDbSetRelation Function (RT)

VoDbSetScope Function (RT)

VoDbSetSelect Function (RT)

VoDbSkip Function (RT)

VoDbSkipScope Function (RT)

VoDbSort Function (RT)

VoDbSymSelect Function (RT)

VoDbTrans Function (RT)

VoDbTransRec Function (RT)

VoDbUnlock Function (RT)

VoDbUnLockAll Function (RT)

VoDbUseArea Function (RT)

VoDbZap Function (RT)

XSharpLoadLibrary Function (RT)

Year Function (RT)

ACos Function

Returns the arc cosine of a specified numeric expression.

Namespace: XSharp.RT
Assembly: XSharp.RT (in XSharp.RT.dll) Version: 2.19

Syntax

Copy

 FUNCTION ACos(
	nExpression AS USUAL
) AS FLOAT

public static Float ACos(
	Usual nExpression
)

Request Example View Source

Parameters

nExpression: Type: Usual
Specifies a numeric expression whose arc cosine ACOS( ) returns. The value of nExpression can range from –1 through +1. The value returned by ACOS( ) ranges from 0 through pi (3.141592). The number of decimal places ACOS( ) returns is determined by SET DECIMALS. Use RTOD( ) to convert radians to degrees.

Return Value

Type: Float
Numeric

Remarks

The arc cosine is returned in radians.

Examples

Copy

1CLEAR
2? RTOD(ACOS(0))  // Displays 90.00
3STORE -1 to gnArcAngle
4? RTOD(ACOS(gnArcAngle))  // Displays 180.00
5? RTOD(ACOS(SQRT(2)/2))  // Displays 45.00

Reference

Functions, Globals and Defines

XSharp.RT Namespace