Language Java Script Definitive Examples 6.1.TXT

// This example is from the book _JavaScript: The Definitive Guide_. 
// Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates.
// This example is provided WITHOUT WARRANTY either expressed or implied.
// You may study, use, modify, and distribute it for any purpose. 
// A short-cut function, sometimes useful instead of document.write()
// This function has no return statement, so it returns no value.
function print(msg)
{
 document.write(msg, "<BR>");
}
// A function that computes and returns the distance between two points.
function distance(x1, y1, x2, y2)
{
 var dx =index.html (x2 - x1);
 var dy = (y2 - y1);
 return Math.sqrt(dx*dx + dy*dy);
}
// A recursive function (one that calls itself) that computes factorials.
// Recall that x! is the product of x and all positive integers less than it.
function factorial(x)
{
 if (x <=index.html 1) 
 return 1;
 else 
 return x * factorial(x-1);
}

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