ID : 3817

Atn2

Function

To return arctangent obtained by subtracting x from y.

Syntax

Atn2(y, x)

Guaranteed Entry

y: Designate Double Precision Real Number Type data.
x: Designate Double Precision Real Number Type data.

Return Value

Return Double Precision Real Number Type data between -180 and +180. The unit is [Degree].

Description

Arctangent obtained by subtracting x from y is returned.

An error occurs when both x and y are 0.

Related Terms

Sin, Cos, Tan, Asin, Acos, Atn

Attention

The return value unit is [Degree].

Example

'!TITLE "Calculation of Arctangent 2"
' Calculation of arctangent obtained by subtracting 2 (the second argument) from 2 (the first 
argument)
Sub Sample_ATn2

  Dim aaa As Integer

  ' Assign the arctangent value of (2, 2) to aaa
  aaa = ATn2( 2, 2 )

  ' Display "45" on the message output window
  PrintDbg aaa

End Sub

ID : 3817

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