Advertisement

05.12.2008 at 11:40AM PDT, ID: 23395518
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
7.6

Recursion question?

Asked by andyw27 in Theory, Algorithms

Hello,

I'm trying to get my head around 'tree recursion'.  I found this example on the web but I do not uunderstabd how it gets th answers:

Here is the code:

The Fibonacci function fib provides a classic example of tree recursion. The Fibonacci numbers can be defined by the rule:

   fib(n) = 0  if n is 0,
          = 1  if n is 1,
          = fib(n-1) + fib(n-2) otherwise

For example, the first seven Fibonacci numbers are

   Fib(0) = 0  
   Fib(1) = 1  
   Fib(2) = Fib(1) + Fib(0) = 1
   Fib(3) = Fib(2) + Fib(1) = 2
   Fib(4) = Fib(3) + Fib(2) = 3
   Fib(5) = Fib(4) + Fib(3) = 5
   Fib(6) = Fib(5) + Fib(4) = 8

Take this for example

Fib(4) = Fib(3) + Fib(2) = 3

I cannot understand how the equation gives a finished value of 3, I get 5?

Any help with this is appreciated.
Start Free Trial
[+][-]05.12.2008 at 11:49AM PDT, ID: 21549525

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]05.12.2008 at 12:01PM PDT, ID: 21549615

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 7-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]05.12.2008 at 12:07PM PDT, ID: 21549649

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]05.12.2008 at 12:09PM PDT, ID: 21549662

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]05.12.2008 at 12:33PM PDT, ID: 21549848

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]05.12.2008 at 01:02PM PDT, ID: 21550081

View this solution now by starting your 7-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

 

About this solution

Zones: Theory, Algorithms
Sign Up Now!
Solution Provided By: Kdo
Participating Experts: 4
Solution Grade: A
 
 
[+][-]05.12.2008 at 01:40PM PDT, ID: 21550339

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 7-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]06.13.2008 at 12:47AM PDT, ID: 21776712

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 7-day free trial to view this Expert Comment or ask the Experts your question.

 
 
Loading Advertisement...
20081112-EE-VQP-42 - Hierarchy / EE_QW_2_20070628