Mathcad

Hello! I'm new to MathCad and I'm having trouble solving a kinetics and reactor calculus problem.I have to find the temperature at which the concentration of B reaches its maximum value. I did this by manually guessing values, but I was wondering if it's possible to do it in an easier way.The constants k depend on the temperature. The concentration of A depends on the constants k. And finally, the concentration of B depends on the constants k and the concentration of A. The temperature I found was 306K. Would it be possible to synthesize all these calculations in a solve block? The following is the resolution and the way I was trying.  

一个文件无法打开   Translation March 3, 2022   A file cannot be opened Completed by Leigh Using Google Translate 

trying to install mathcad 14 on new computer. old computer with install has been destroyed;. unable to register

See Prime 6 in attach (one pendulum with a ribbon)

I am having difficulty figuring out what is wrong with my worksheet. This worksheet is a design calculation of spur gear. My problem is that addendum, dedendum, and clearance units are in 1/in, which is wrong. Why is it that the units are in reciprocal form? Is there any solution for this?. The goal is that the addendum, dedendum, and clearance must be in plain mm or in. Hoping someone can help me. Thanks

Hello All,I want to look at an XMCT file.For this I got the 30 days trial version PTC Mathcad Prime 7.0.0.0.When converting the file I get the feedback "Failed".What can I do to be able to work with the file after all.Sincerely Nikolaj   Translated with www.deepl.com Translated by Corina Ionescu, March 2nd 2022   Hallo Zusammen,ich will mir eine XMCT-Datei anschauen.Dafür habe ich mir die 30-Tage Testversion PTC Mathcad Prime 7.0.0.0 geholt.Beim Konvertieren der Datei bekomme ich die Rückmeldung "Fehlgeschlagen".Was kann ich machen um doch mit der Datei arbeiten zu können.MfG Nikolaj

Windows 11 will be released as early as next month. Has anyone done some testing of the existing versions of Mathcad (i.e. MC15, Prime 3-7) to identify issues under Win 11. Personally, I have a perpetual academic license for MC Prime 3.1, and as a retiree, I am loathe buy a subscription version. Furthermore, I have had to reinstall MC Prime 3.1 several times and it has never been an easy task. Unless I am reasonably certain that an upgrade to Win 11 will not be an issue for Mathcad Prime 3.1, I will simply stay with Win10.

I have a MathCAD model that reads raw data from a CSV file and plots it.  It was working fine but then when I read a new set of data the plot trace lines became very thin and the option to edit them is grayed out now.  Is this a bug or something?  I have between 54,000 and 250,000 points but it was working previously.  It just switched when I read a new data set.  Here is how it should look and does look with one dataset: Then here is how it looks with a new data set, the trace thickness becomes very thin and the option to change it is grayed out...This issue is occurring to multiple plots in the document, here is another example:...and here it is with the new dataset:I need to find a solution.  Please let me know if you know what this is. Thank you!

Here is a simple math challenge for you. Solve with MathCAD! On a regular 12 hour clock, how often does the minute hand pass the hour hand?(Hint: The answer is not 60 minutes.)Edit: I'm looking for the amount of time it takes for the minute hand to pass the hour hand. I will post the solution in 1 week. Kudos abound!

HeyThe last week i have been working on a Mathcad-file with som notes. But suddenly i couldn't open the file?What is going on?  The file is 3,82 MB so there must be some data? The filetype i MCDX and i use Mathcad Prime 7.0.0.0 I have attached the file as a .zip - hopefully someone can help?  - Valdemar 

Hi, I have a combo-box with in a mathcad sheet that I would like to change through Excel + VBA. The combo box is something like this:option1 ¦ 0option2 ¦ 1etcThe idea is to change from excel the state of the combo box. I can add it as an input, so it seems possible but I don;t know what variables I need to pass. I tried "option1" and 1 without luck, VBA tells me that I cant pass that variable to the combo box.Anyone has experience with this? Regards,  

I know, this is a terrible place to ask this, but this is where support routed me.I switched machines and no longer have access to my Mathcad Express download link. Anyone know how I can get the download again? I still have the license file, which I assume will still work - I just need the software download.Thanks!

I am having another MatchCAD Prime issues. Plotting simple equation in MatchCAD 15 worked. After transfer to Prime the graph - Plotting failed. Replace complex values and NaN by real numbers. I can't see any issues here. My Balance Now 

My laptop has become broken. So I installed Mathcad on my new computer, but on my new laptop the license code does not work anymore. It says when entering the license code: Program ID not be expired. Translated with www.deepl.com Translated by Corina Ionescu, Feb 28th 2022   Mein Laptop ist kaputt geworden. Deshalb habe ich Mathcad auf meinem neuen Rechner intalliert, aber bei meinem neuen Laptop funktioniert der Lizenzcode nicht mehr. Es steht beim eingeben des Lizenzcodes: Programm-ID not be expired.

Renew licence

Hi all I have a bitmap image (see attached) that I would like to read into MathCad 15 and then fit this surface to a user defined set of polynomials using the linfit function.  I have seen examples on the internet and this message board using an x-y data array and used them to fit data, but I wasn't able to find anything providing the syntax on how to load a 3-D array.  Thanks and let me know if you have any questions.

Hello. Im a university student in denmark, and im using mathcad for my education. i have a issue with one og my documents. I have made a document, but now when i try to open it i get the error message that the filetype is not supported. It is very important i get this document to work again. please help.

Dear all,can anybody please tell me why I get [1x1] as a result for Acyl on page 4 of the attached document?I don´t know what I am doing wrong but with this results I can not use it in the further calculations.Thank you in advance.RegardsSeb

  R(1*1)=1, R(2*2)=3/2. How about R(3*3),R(4*4) and R(5*5)?

I was trying to use the fancy new charting system (Math | Insert Chart Component), and all was fine until I tried to enter the units for the trace, micrometers, as mm in the trace name.  I could not see any way of doing it, and ctrl-G was clearly not recognised.  How on earth do I state what the units are on a chart like this if I cannot use Greek letters?  Is there a way of doing this that I have not seen yet? In the Chart Title, there's a drop down box so that I can select the case for the whole title, but not for just a few characters, and anyway that's in the title, not the trace name. So unless I am mistaken, the whole of the text system for these new types of charts is incredibly basic and limited ... am I right?  Please tell me that I have missed something, because I quite like the new charting system otherwise.

Hi, I had conflicts between Excel VBA and Mathcad. Basically, VBA seems to not wait for Mathcad to finish its calculation, leading to errors (e.g. not retrieving outputs). I solved most of these issues by adding the commandApplication.Wait (Now + TimeValue("xxx"))which forces VBA to wait xxx seconds before resuming the code. Still, I was wondering if there is a way to know from VBA the state of Mathcad (is it calculating or is it ready to start calculations?). That way, I can tell VBA to wait as a function of Mathcad state. Regards,

i CAN'T INSTALL THE DRIVER LICENSE

This PTC Mathcad Prime worksheet explores two options for importing data from an external Excel file into Mathcad. These two options are the Excel Component and the READEXCEL function . This worksheet is partitioned into two sections. Within each section, we will calculate the surface area of a threaded bolt for electro-plating using data imported using the two options mentioned above. Please note that this is not intended to be an in-depth tutorial, and therefore won't provide details on every mouse click and keyboard entry. There are examples available in the Help Center, so if you find yourself needing a little extra explanation, that will be a great place to start. Direct links to specific features will be added in this document to help you find more information on that specific topic.   This Mathcad worksheet was made in Mathcad Prime 7 and then updated to Mathcad Prime 9, and uses Mathcad premium functionality. The .zip includes the Mathcad worksheet and an Excel spreadsheet

Dear forum members, I'm just trying to write a simple integral equation for the beam deflection (simply supported beam with uniformly distributed load).  Could anyone correct me where is the error that in the end it does not come out as it should, i.e. (5/384)*(L^4*q) / EI ?? Greetings,

Can't figure out how to show mixed fractions in Mathcad Prime...Mathcad 15 did a great job of this and the feature seems to be missing from Prime?