Contact US

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

Recalc with Range Variables

Recalc with Range Variables

Recalc with Range Variables

I have the following defined:
 Min:=100   Max:=500
 X:= Min,Min+50 .. Max


 This gives me a table from 100 to 500 in steps of 50, the problem I am having is if I change the 100 to say, 50 F(X) is not recalculated.  It is set to recalculate. If I go to the F(X)= statement and delete the "=" sign and retype it, it then recalculates.  Is there anyway to get Mathcad to do this automatically.  Its Mathcad2000.

RE: Recalc with Range Variables

Are you sure you have automatic calculation turned on?  

You need to set it from the menu selection in the Tools submenu


RE: Recalc with Range Variables

Yes, it is turned on.  Other equations change when I change other variables.  Just not that particular column.  It may be changing in the background but not in the view.

RE: Recalc with Range Variables

After thinking about my last post, I thought I would graph the function. Sure enough, the graph changes but the table stays at the same values.  Bug or Feature??

RE: Recalc with Range Variables

It's a bug in the integrity of the Mathcad installation.  

The same set of expressions crashed Mathcad at home, but ran perfectly fine at work, with the same software load.


RE: Recalc with Range Variables

I have had the same problem with V7, 2000 prof and 11.

There are 6 identical (hardware-wise) PCs in my section, and two (mine and one other) have all sorts of niggly litle things like this with Mathcad that the rest don't.  For instance, I also have a problem with the up-down scroll bars resulting in a left-right scroll and vice versa - but only intermittently!

I have reached the point where I just mutter rude things under my breath and press on - I can't see any way out of it, and I don't know that Mathsoft have any real answers, especially if the problem appears to installation dependent.

Life is non-linear...

RE: Recalc with Range Variables

Mathcad seems to interact badly with stale video drivers, and also tends to want video acceleration turned off.

Some of the older versions Norton AV also have bad effects when scriptable components are embedded in the Mathcad sheets.


RE: Recalc with Range Variables

I would like to thank you both for all your input.

In Mathcad2000 the recalc feature is under the "Math" selection. There is "Autocalc", which is turned on.  "Calc" (also performed by hitting F9) and "Calculate worksheet".  Auto Calc and F9 give the save results.  They do not update the tabulated data.  However if I run "Calculate Worksheet" everything is updated.  So at least I can do that and get results.  Interesting that they do not have an "Auto Calc Worksheet" selection anywhere, or at least I can't find it.

RE: Recalc with Range Variables

Autocalc is supposed to work on the entire sheet.  There is no separate autocalc for expressions.

Calc (F9) only works on the current selected expression and any colateral expressions.


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


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