JavaScript by Example: JavaScript Core Objects. Pt. 1 ...
Our web spider found the following code snippet at www_webreference_com and contains information about atan and JavaScript.
t;script language="JavaScript"> 
 
1  var num=16; 
 
  document.write("<h3>The square root of " +num+ " is "); 
 
2  document.write(Math.sqrt(num),".<br>"); 
 
  document.write("PI is "); 
 
3  document.write(Math.PI); 
 
  document.write(".<br>"+num+" raised to the 3rd power is " ); 
 
4  document.write(Math.pow(num,3)); 
 
  document.write(".</h3></font>"); 
 
 </script> 
 
 </body></html> 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
Rounding Up and Rounding Down 
 
There are three Math methods available for rounding numbers up or down. They are the ceil(), floor(), and round() methods (see Table 9.7 for examples). The dif
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