Math.tan() : tan « Math « JavaScript Tutorial

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JavaScript Tutorial » Math » tan 
9.27.1.Math.tan()

Syntax

math.tan(num)

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>
9.27.tan
9.27.1.Math.tan()
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