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VBScript Atn Function

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The Atn function returns the arctangent of a specified number.

Syntax

Atn(number)

Parameter Description
number Required. A numeric expression

Example 1

document.write(Atn(89))

Output:

1.55956084453693

Example 2

document.write(Atn(8.9))

Output:

1.45890606062322

Example 3

'calculate the value of pi
Dim pi
pi=4*Atn(1)
document.write(pi)

Output:

3.14159265358979

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