The tan method in JavaScript is utilized to compute the tangent of a specified number, which correlates to the tangent of an angle.
Syntax
The syntax for the tan method can be expressed as follows:
Example
Math.tan(num)
Parameter
num - A number.
Return
A value that signifies the tangent of a specific angle.
JavaScript Math tan method example
In this section, we will explore the tan method by examining a range of examples.
Example 1
Let's see a simple example of tan method.
Example
<script>
document.writeln(Math.tan(1)+"<br>");
document.writeln(Math.tan(2));
</script>
Output:
Output
1.5574077246549023
-2.185039863261519
Example 2
In this instance, we will demonstrate the usage of the tan method utilizing negative values.
Example
<script>
document.writeln(Math.tan(-1)+"<br>");
document.writeln(Math.tan(-0.5));
</script>
Output:
Output
-1.5574077246549023
-0.5463024898437905
Example 3
Let’s explore the tan function through various test scenarios.
Example
<script>
document.writeln(Math.tan(0)+"<br>");
document.writeln(Math.tan(Math.PI));
</script>
Output:
Output
0
-1.2246467991473532e-16
Example 4
In this section, you have the opportunity to evaluate the tan function using your own set of test cases.
Example
<script>
function display()
{
var x=document.getElementById("num").value;
document.getElementById("result").innerHTML=Math.tan(x);
}
</script>
<form>
Enter a number: <input type="text" id="num">
<input type="button" onclick="display()" value="submit">
</form>
<p><span id="result"></span></p>
