By Ben
For example, find 10!
There are two solutions:
French one:
General approach:
/ / ==================================== Document.writeln ("Recursive algorithm 1:"); / / ===================================== - 1); Document.writeln ("10! =" Factorial (10));
Method 2:
You can also perform recursive in the class method, but this is a bit risky. The method name of the Call class in JavaScript will be recursively caused "Object Expected" error. To avoid this error, you must use the basic function name or Callee parameter of the method to perform recursive. Based on the list D, I added a step-by-step method in mymath class, as shown below.
Document.writeln ("Recursive Algorithm 2:");
Function mymath () {
/ / ======================================================== this.Result; // Result of method this.factorial = myfactorial; // Factorial Method
Function myfactorial (x) {if (x <2) return 1; else {this.result = x * arguments.callee (x - 1);
Return this.Result;}}
/ / ====================================================================================}
Var Math = new mymath (); // Create An Instance Document.writeln ("10! =" Math.Factorial (10));
