The cosine of an angle, in radians.
Cos(number)
Parameter | Description |
---|---|
number |
Angle, in radians, for which to calculate the cosine |
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.
<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>Enter a number between -1 and 1</h4> </cfif> </cfif> <form action = "cos.cfm" method="post"> <p>Enter 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>