×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

3by3 Newton-Raphson Method
2

3by3 Newton-Raphson Method

3by3 Newton-Raphson Method

(OP)
Hi, I'm writing a program in C that creates a simple model of the forces within a tow cable being pulled through the ocean by a ship. In my force analysis I have three non-linear equations with three unknows. To solve for these unknowns I would like to use the Newton-Raphson method. I've found a lot of information on the simple single unknown form, but haven't found much for solving three unknonows using a 3by3 matrix.

Do any of you know of any already made functions that I could use so that I eliminate the need to reinvent the wheel?

Thank you,
windell747

RE: 3by3 Newton-Raphson Method

Isn't that better known as the "Newton-Multidimensional" method?  ie. calculating corrections via a Jacobi matrix.  You might try searching for an algorithm by that name.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources