×
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

Mathcad Solve Block Question

Mathcad Solve Block Question

Mathcad Solve Block Question

(OP)
I am trying to solve for rho that is on both sides of the equation - shown below.

rho = tan(rho)*[0.5+(pi-beta)*cot(beta)]

Beta is a function of theta - theta is my variable. I know what rho should equal for given values of theta but when I run the program I do not get the desired result.

Am I approaching this problem wrong and do you have any recommendations?

I have attached the program below.

RE: Mathcad Solve Block Question

Your guess value for rho is too far away. However, I still don't get the values you have in your table. Did you try to calculate them directly; they're close, but not nearly identical

TTFN
FAQ731-376: Eng-Tips.com Forum Policies
[IMG http://tinyurl.com/7ofakss]
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

RE: Mathcad Solve Block Question

(OP)
The values in the table are from the ASME code. The code has a second equation that is best fit curve of the formula I am trying to solve. The values from that best fit curve are those in the table. They will not be exact. I have attached the mathcad file again but this time included the best fit curve equation.

I am trying to find the exact value. I think the way around my problem is to use the best fit curve equation as the guess value. That update is also included in the mathcad file attached.

Thanks IRstuff, you helped me answer my question.

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