x
<html><body><h1>JavaScript Math</h1><h2>The Math.cos() Method</h2><p>Math.cos() returns the cosine of an angel given in radians.</p><p id="demo"></p><script>document.getElementById("demo").innerHTML ="Cosine of 0 degrees is: " + Math.cos(0).toFixed(2) +"<br>" +"Cosine of 60 degrees is: " + Math.cos(Math.PI/3).toFixed(2) +"<br>" +"Cosine of 90 degrees is: " + Math.cos(Math.PI/2).toFixed(2) +"<br>" +"Cosine of 180 degrees is: " + Math.cos(Math.PI).toFixed(2) +"<br>" +"Cosine of 360 degrees is: " + Math.cos(Math.PI*2).toFixed(2);</script></body></html>