296
CFML Language Reference
Cos
Returns the cosine of a given angle in radians.
See also
Sin
,
Tan
,
and
Pi
.
Syntax
Cos
(
number)
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
.
Examples
<!--- 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>
Summary of Contents for COLDFUSION 4.5-CFML LANGUAGE
Page 1: ...Allaire Corporation CFML Language Reference ColdFusion 4 5...
Page 207: ...Chapter 1 ColdFusion Tags 183 CFCATCH CFTRY BODY HTML...
Page 224: ...200 CFMLLanguageReference CFOUTPUT P Text within CFOUTPUT is always shown CFOUTPUT BODY HTML...
Page 336: ...312 CFMLLanguageReference CFIF BODY HTML...
Page 404: ...380 CFMLLanguageReference DE It is morning CFOUTPUT P BODY HTML...
Page 413: ...Chapter 2 ColdFusion Functions 389 Customer BalanceDue BR CFOUTPUT CFIF BODY HTML...
Page 483: ...Chapter 2 ColdFusion Functions 459 CFOUTPUT CFLOOP BODY HTML...
Page 584: ...560 CFMLLanguageReference...
Page 594: ...570 CFMLLanguageReference...