×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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!
*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

Units in a solve matrix inconsistent

thread552-305017

Units in a solve matrix inconsistent

Units in a solve matrix inconsistent

(OP)
Hello eng-tips forum,

I am new to MathCAD and am having trouble with units in a solve block. Please correct me if I am saying this wrong.

Basically I get results of ft*kip/ft which should really be kip. I am guessing there is some check box to fix this that is buried in one of the options tabs?  Please advise!

Thanks in advance,

RE: Units in a solve matrix inconsistent

You really can't.  The symbolic processor doesn't actually understand units, so the best you could hope for is to replace kip and klf with 1000 lbf and 1000 lbf/ft, and at least, the answer will be in lbf.  Since you're only using those two units in the definitions, that shouldn't be a big problem.

However, since you are not actually trying to get a symbolic solution, you can replace the <ctrl>+. with a straight equal sign, which will still do the inline evaluation and give you the numerical answer with kip as the unit.  You'll need to assign guess values to Ay, By, and Cy, before the Given.

http://files.engineering.com/getfile.aspx?folder=ffb9d310-97a3-4b5c-8368-57259e47194f&file=test_numerical_only.xmcdz



 

TTFN

FAQ731-376: Eng-Tips.com Forum Policies
Chinese prisoner wins Nobel Peace Prize

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! Already a Member? Login

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close