Mathcad

I have:  And a dropdown with rebar properties: Areas are in col 2, 0.44, 0.60, 0.79, etc. How can I write an equation that returns the bar size with the largest area exceeding Areqd? Please advise, thank you  

Hi my current workflow involves input a few variables on the first page of mathcad worksheet, then jump to the last page to see the output results after lengthy calculations. I have to tweak the inputs so that the output can meet or at least is close to certain value range. This is not efficient, so I am thinking if the worksheet can take in multiple sets (say, about 100) of input, read one set at a time, do the evaluation, then write the output result somewhere/in some file; then it will jump to the next iteration.I do not want to rewrite the input as vectors, because this will require rewrite all formulas using vectorize operators. Thank you . 

I am looking for Mathcad files that deal with synchronous electric motors (non-salient poles and salient-poles).These files should include fundamental mathematical equations for the motors and the calculation of their characteristic curves. A few years ago, I had access to this type of file, created by Mr. Roman Miksiewicz of the Silesian University of Technology (Poland).Unfortunately, the files I have do not cover synchronous motors. If you have such files, could you please provide them to me as Mathcad "xmcd" files, as I do not have Mathcad Prime?I am a retired engineer and volunteer my time helping students with their studies. Thank you in advance. Richard

Hello, I have a completed Mathcad sheet that makes a 3D mesh. I am requesting to please help if the Q function that generates the mesh can be simplified such that the processing time is less. My version is 10. Thank you      

Hi PTC Community,I am not sure why this programming construct will not work: apply the Nu function on a scalar & a column vector. I use Mathcad Prime 11.0.1.0. Thanks,thodij

Hello, I use Python to extract data from Mathcad Prime files, based on the previous post below. One thing I noticed is that our Python tool will crash when you have a new line in a text region. Getting rid of the new line in the text region gets rid of the crashing issue. When I go into the Mathcad .zip file with all of the XML data, I do not see any difference between two files - one with text with a new line and one  with no new line. Where would I find the new line data in the text region? I will update the Python code to catch new lines, but I dont even see where the new lines are in the text region.    Mathcad Prime 9.0 Scripting with XML Data - PTC Community

I am using Mathcad V15.  I have started playing with using controls in some of my sheets to limit certain variables to having only certain inputs.  In my one sheet, I added a list box control for a variable, and the only choices the user could select would be "B", "C", or "D".  When I finished my sheet, I set the variable to selection "C", saved and then closed.  When I reopened the sheet, the selection of "C" for the variable was cleared.  Is there a reason why the sheet did not retain the selection for the control?  Is there a setting somewhere that I can change that will allow the selection to remain?  Thank you!

Happy New Year!   This month’s challenge is inspired by recent events: the October 2025 Louvre heist in Paris France.   Using Mathcad Prime, solve any or all of the following challenges: Challenge 1 (Polygonal): find the minimum number of guards necessary to cover 100% of the following polygonal space. To be unobtrusive, the guards must be placed at vertices. The guards are inside the museum. Assume that the guards can turn their necks and bodies to see everywhere around that point that is not blocked by a wall. The guards have excellent vision and can see everything clearly between them and a wall.     Challenge 2 (Graphing): using the plotting and charting capabilities of Mathcad, depict the placement of the guards and their zones of coverage.   Challenge 3 (Orthogonal Variant): find the minimum number of guards for the following art gallery.     Challenge 4 (Graphing): Depict the placement of the guards and their zones of coverage for the orthog

Hi there ,I need to do this check that F< fy ...I get the wrong answer .. can  you help me to fix it I don't know why I can't upload the picture here it is attached      

The attached file has two functions.  The top function work but will not allow double quotes in the second column of a text file.  The second function works to do that, and it works well enough.  Was wondering if I could improve it with a TRY... ON ERROR addition?  

 it is impossible for me attach the original file " 2BINnoT_26LUG2013.xmcd " Claudio Cattaneomy mail cceng@☼engineer.com 

Hi PTC Community - I have two variable quantities (Water & Ammonia) evaluated over two different temperature ranges over which only they are each valid.I would like to plot both with a common x-axis range (-70°C to +370°C), and not be limited to either the T1 or T2 (MIN, MAX) range.See how the Ammonia (pink) plot is being limited to the MIN(T1) value of 1°C. See attached. I am using Mathcad Prime 11.0.1.0. Your tips and suggestions for a fix will be appreciated. Regards,thodij

I am the onsite tech for an Engineering company.  I have a user who has Mathcad Prime version 11.0.1.  The install did not give me the option to install Xmcd, MCD converter.  I read the posts that the user needs version 15.0 or higher to have those features but the user says that she does not need 15.0.  She said that is an older version and she won't be able to run her files.  How can I get this feature installed?

Hello!In my case, I would like to plot an S–N curve for fatigue life.I need the initial slope to be m = 3 or m = 5, and after the knee point, the slope should change to m = 22, specifically for the high-cycle fatigue region.On the Y-axis, a stress range up to 300 MPa is sufficient.On the X-axis, I need the range from 0 to 4 × 10⁷ cycles, and importantly, the X-axis must be in logarithmic scale.I have attached an example S–N curve below for better understanding.I noticed that there is a logarithmic scaling function available in Mathcad plots, but I am not able to apply it correctly for my specific case. BrNLAAL  

I have a code that is looking through the matrix and selects creepage based on my input parameters (PD, MG and working voltage WV). It works great....in picture 1. picture 1 Now, I want to add a linear interpolation between 2 values of the voltage. I made a variable "a" doing linear interpolation and tested it works as expected, which it do. Column variable for searching in matrix is hardcoded at the beginning for test. Now, since it work, code A (linear interpolation of the creepage) replace code B (that is using only search method w/o interpolation) in the original code. That is the only change in original code. Code A is tested it works, gives values I need but after A replaces B function that is calling creepage(WV,PD,MG) is complaining "These units are not compatible". What am I missing? I dont see any problem there. thanks Running on Mathcad Prime 11.0.1.0

I was trying to convert a mathcad 15 file to mathcad prime 9, but I get an error in solving for this variable I placed all my guess values and constraints but it still does not work. Refer to the pictures with the solve block and how it was performed in mathcad 15.Mathcad 15 how it was performedMathcad prime 9.0 error in solve block 

Hello PTC Community. I am posting a Mathcad Prime 11.0.1.0 worksheet wherein I am evaluating certain quantities by performing element-wise multiplication and division of column vector variables. I believe that I am not doing this right.Your help will be appreciated.In MATLAB, it is .* & ./ for element-wise multiplication and division, respectively.Both the attached Mathcad & Excel sheets work together. Thank you for your assistance.

I would write a function to remove blank characters in rename the string.  See attached.

Diagonal resistance of regular polyhedron. R(4)=1/2, R(6)=5/6. How about R(8), R(12) and R(20)?

Hi all,   I'm a long time user of Mathcad but first time poster - hoping someone can tell me where I'm going wrong!   I'm having trouble in Prime 11 creating functions that use vectorized multiplication of two vectors, where the values inside one of the vectors was created using the sum operator. When I do the equivalent operation directly within the worksheet (i.e. not within a function it works without error. When I try replacing the sum operator within the function with a value it all works without error.   The error message I get is "This value must be a matrix of scalar elements all of which have the same units"   I've seen a lot of discussion about how this error can come from inappropriate use of ranges when vectors should be used - I've checked using IsArray & IsRange on all the vectors involved and I don't think I have any inadvertent ranges.   Example worksheet showing my issue attached.   If anyone can help tell me where I'm going wrong I'd

Hi,"We are aware of an issue attaching Mathcad files to community posts. Please use a ZIP file as a workaround until this issue is resolved."When this issue will be solved? I believe this has been from many months@DJNewman 

Just as i thought the problem was solved it went back. I tried resetting my pc and downloading everything from scratch. I have a lenovo with windows 11 home. Everytime i try saving a document a corrupt saving page pops up. i will attach it here. It happens when i use; save as, save or any type of export.I have tried reinstalling several times, also as administrator, and it has the same outcome.When running the program as admin it gives 3 more seconds on the save window but inevitably it crashes again. I made sure i unpacked the download zip-file locally and not using onedrive. Also i placed the app locally.  Background info: Im a danish student at Aarhus university. They supply license to mathcad prime 10.0.0.0 and is therefore my only way of downloading the program. I have got a new pc as the old one got destroyed, and now the problem is occuring. I have tried following instructions to solution finding through AI, but it has not lead me to a working solution. I have res

I often struggle to get Mathcad Prime to return symbolic solutions. I suspect I’m missing something in the way I set up or call the symbolic engine, so if anyone can point me to a good tutorial or explanation of best practices, I’d really appreciate it.I’ve attached a worksheet with the equations. My goal is to obtain a single expression for γ as a function of h, α, and β.At the moment I either get red evaluation errors or no result from the solver.Any guidance on what I should change in my setup would be very helpful.Thanks,David

Hi Everyone, I have tried to implement a slider combined with markers to display values from my plot. However, by doing this I get an error for plotting my functions themselves, and I believe it might be because of the units.I have attached a picture and the file itself below.I am using mathcadprime 10.0.1. I hope you can help! Best regards,Adam

I'm trying to determine if five variables are scalars or strings for installation into a unitless matrix for future use.  Shown are five separate IF expressions.  Is there a single function to condense the five IF statements into?