VBScript AtnFunction


VBScript 参考手册Complete VBScript Reference Manual

The Atn function returns the arctangent of a specified number.

Syntax

Atn(number)

Parameter Description
number Required. A numeric expression.

Example

Example 1

<script type="text/vbscript">

document.write(Atn(89) & "<br />")
document.write(Atn(8.9))

</script>

Output of the above example:

1.55956084453693
1.45890606062322

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Example 2

Calculate the value of pi:

<script type="text/vbscript">

Dim pi
pi=4*Atn(1)
document.write(pi)

</script>

Output of the above example:

3.14159265358979

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