Cos

Description

Returns the cosine of an angle, in radians.

Syntax


Cos(number)

Parameters

Parameter

Description

number
Angle, in radians, for which you want the cosine

Parameter	Description
number	Angle, in radians, for which you want the cosine

Usage

The range of the result is -1 to 1.

To convert degrees to radians, multiply degrees by π/180. To convert radians to degrees, multiply radians by 180/π.

Example

<!--- This snippet shows how to use Cos --->

<html>

<head>

<title>Cos Example</title>

</head>

<body bgcolor = silver>

<H3>Cos Example</H3>



<!--- output its Cos value --->

<cfif IsDefined("FORM.CosNum")>

  <cfif IsNumeric(#FORM.CosNum#)>

    Cos(<cfoutput>#FORM.CosNum#</cfoutput>) = 

    <cfoutput>#Cos(FORM.cosNum)# 

    radians = #Evaluate(Cos(FORM.cosNum) * 180/PI())#

    Degrees</cfoutput>

  <cfelse>

<!--- if it is empty, output an error message --->

    <H4>Please enter a number between -1 and 1</H4>

  </cfif>

</cfif>



<form action = "cos.cfm" method = "POST">

<P>Type in a number to get its cosine in Radians and Degrees

<BR><input type = "Text" name = "cosNum" size = "25">

<P><input type = "Submit" name = ""> <input type = "RESET">

</FORM>

</body>

</html>

Cos

Description

Category

Syntax

See also

Parameters

Usage

Example

CFML Reference
ColdFusion Functions