The tan() method calculates the tangent of a number.
It returns a value representing the tangent of an angle.
<html> <body> <script language="JavaScript"> <!-- function doMath(){ var inputNum1=document.form1.input1.value; var result = Math.tan(inputNum1); document.form1.answer.value = result; } --> </script> <form name=form1> This example calculates the tanget of the entered number. <br><br> Enter Number: <input type="text" name="input1" size=10> <input type="button" value="Calculate" onClick='doMath()'> <br> The tangent is: <input type="text" name="answer" size=20> </form> </body> </html>
