Mathcad

Trying to solve a large linear algebra Ax=b problem using Prime.The x:=lsolve(A,b) says not enough memory, but I can solve the same size using other software on my large 128GB of RAM.Prime 11 reports in task manager as only 217 MB.How do I give Prime access to more memory if possible?Cheers 

Sir Isaac Newton   This month’s challenge is inspired by one of the great unsolvable challenges of physics, the Three Body Problem.  Of course, we won’t be asking you to perform the impossible in Mathcad Prime. Your challenge, should you choose to accept it, is the Two Body Problem for orbital mechanics. Earth-satellite two body problem   Challenge 1: Create the math functions and programs that can calculate the position, velocity, and acceleration of a Mazda Miata-sized satellite in orbit around the earth. (Why a Mazda Miata? It was my first and only car. Feel free to substitute a car of your choice.) Choose your orbital parameters for altitude (e.g., medium-earth, geosynchronous, high-earth), inclination, eccentricity, and any other factors.   Challenge 2 (optional): Incorporate advanced input controls to change the orbital parameters.   Challenge 3: Graph the x-, y-, and z-values for acceleration versus time. Create additional graphs for velocity and positio

https://community.ptc.com/t5/PTC-Mathcad-Ideas/Split-screen/idi-p/656081   The above link leads to a Mathcad Idea that suggests having split-screen working.  This is something that I've wanted to see in Mathcad for some time (over 13 years, in fact), the lack of which is proving a real nuisance at the moment.  Could some kind, support-paying souls please offer their support for this idea?  Thanks,   Stuart   https://community.ptc.com/t5/PTC-Mathcad/New-Feature-requests/m-p/356451#M139515   (I've got a much bigger list, in case anyone's not interested ...)

Hi  I have issues trying to plot the Moment and Shear Force diagram of the following case. Any help is highly appreciated! 🙂  

I purchased and installed Mathcad Prime 12. However, I now understand that, because I am using a Dutch Windows 11 OS, Mathcad does not start. First of all, I find it unbelievable that PTC does not mention this very clearly beforehand, but that you are only confronted with this after purchasing. What really makes matters worse is that, although you start from and with the English website, you are redirected during the installation process to a Korean website, which is unreadable. So now I am stuck with a Mathcad version that I paid for and for which the 1-year period has already started, but which I cannot use. I would like this situation to be resolved ASAP.

Many of my Mathcad worksheets are large (50+ pages).  As the worksheets get larger, the screen refresh rate becomes so slow when using the drag slider bar that scrolling through the worksheet becomes very difficult.   This has always been key source of frustration when using Mathcad for large models. I had been working on a large worksheet for a bit after upgrading to Mathcad 12 when I realized that the scrolling was as responsive as any Microsoft Word document – very smooth with no noticeable lag up to any reasonable scroll rate!  That was not one of the explicitly stated new features in Mathcad 12 – so I didn’t notice it immediately (sometimes you don’t notice the things that just work the way you’d expect them to work).  I really appreciate some of the other enhancements in the Prime 12 release like Find/Replace with subscripted variables (another large worksheet issue) and the enhancements for native plots, but the scrolling improvement ranks near the top! 

Please help me what am i doing wrong?Mathcad Prime 11.0.1.0

Hi,I am using root function to solve a function for different variables (variables are vectors) but some of these values don’t converge as there is no solution. How can I skip these values that don’t converge and make a table for those values and solve the rest? I have attached the MathCAD zip file.  Thank you!!!

I am trying to copy a 1xn matrix developed in mathcad prime 11 and paste it into an excel like table in ansys mechanical to build material curves for stress analysis.  I cannot for the life of me figure out how to do what seems like a simple task.  Is this an easy thing to do?

I am trying to copy a 1xn matrix developed in mathcad prime 11 and paste it into an excel like table in ansys mechanical to build material curves for stress analysis.  I cannot for the life of me figure out how to do what seems like a simple task.  Is this an easy thing to do?

Hello,I have tried to upload the mathcad file, but it does not allow me. The following was working in mathcad 15, but it does not evaluate in prime Thanks,Sam

Hi,I have a file that can’t be opened by Mathcad Prime.I just get the message “File type not supported”.Anyone got any tricks to find ways to repair the file?I attached the file here in .zip format since mcdx format is not supported.

Hello!A new year and a new crash unfortunately.I was working with this document and saved it. The next day when opening it i just get "The file type is not supported".Can it be recovered? Would help alot 🙂I attached the failing document and a log fileKind regards, TomPrime;7.0;FileNotSupported;Crash;MathcadPrime

Hi there, I'm receiving the error "file type not supported" when trying to open an old mathcad file. I've attached the file, could you please assist. 

I am currently running the trial version of Mathcad Prime 11.0.1.0 (I think only a few days left) to evaluate its capabilities for solving multiple equations with multiple unknowns. I want to verify that it will produce the results that I need before purchasing the software.  I have run into a problem getting Mathcad to solve the system equations symbolically. I have looked around the internet for community information on this aspect of Mathcad but have not found anything that addresses my specific topic. The problem to which is seek a solution arises when modeling the impact between two bodies. Using the impulse-momentum formulation of Newton's 2nd law gives me 6 equations and six unknowns with a point mass (no rotational inertia) impacting a point mass. I put this system into Mathcad and used the solve feature and it produced the desired result. My file is attached. You will see that I took the solution equations Mathcad produced and ported them over to calculate the numeri

Mathcad Prime 10 A few years ago, I found this great Mathcad wrapper (GitHub - usnistgov/REFPROP-wrappers: Wrappers around NIST REFPROP for languages such as Python, MATLAB, etc.) for NIST REFPROP 10 where I can call properties using a script.  This has been a game changer for me.  The issue is that not all fluids that I need are available to me, (DMAc or MMA for example) in REFPROP.Does anyone know of a DIPPR/Diadem Mathcad wrapper out there that works well? Thanks

Hi, I have been trying to get this non-linear gear dynamics system of ODE's to solve but for the life of me cannot seem to correct the errors.The attached sheet has several attempts at the end to write the equations and initial conditions in different formats but all give "too few initial conditions" or a"floating point error". Like most programming errors its probably glaringly simple!Any assistance would be appreciated.Regards,Ross 

New to PTC community but long time user of mathcad. I need to get the Roarks formula's for stress and strain ebook but as best I can tell from the forums it is no longer provided with mathcad AND it's not available on the forums for download (or on the web as best I can tell).  Is this correct? TIA

 I want an algorithm that generates the function [a,b,c}=unique(Y) although there are forums what I need is for it to be only with structural control sequences if else for while etc but not advanced functions of either Matlab or from mathcad since when you want to replicate the function elsewhere it is complicated, it would be appreciated if you have a way to do it  What would the mathcad programming of this algorithm be like as it is in the image so it is easier to carry out the function? 

Hi there!I 'm trying to master the slider advanced control option to see how my goal function will be changed. On the PTC  support page, I have found only the 2-axis plot sample:https://support.ptc.com/help/mathcad/r10.0/en/index.html#page/PTC_Mathcad_Help/example_slider.html#wwID0EIKIPB  It looks like the upgraded version of Prime 10.0.0 probably has some bugs, or it is impossible to obtain such an option.I've attached the function sample  (Prime 10.0.0), which I'd like to observe using the advanced control button (slider).Any advice or assistance will be appreciated. 

We have a large number of installed users that use Mathcad 15 on a regular basis.  Just recently, a few have been noticing that selecting File|Save from the main menu is NOT saving the updates to their files.  You can imagine our concern.  It's intermittent and I cannot reproduce it myself on my desktop, but I'm hearing it from enough of our users that I think it's real.  It could very well be something to do with our environment and not be a Mathcad issue at all, but it is concerning.  We're running Mathcad 15 M045 and one of the keys is that the attempted save it to a network drive, not a physical drive on the desktop machine. Has anyone by any chance run across anything similar?Thanks!

I'm wondering if anyone else is having this problem.  Just noticed that Mathcad 15.0 M050, released specifically for Windows 10, has an odd printing issue.  To PCL printers and PDF files, it appears that the font characters are all using a negative fixed character spacing on the order of -0.01 to -0.06.  This "bunches" up the characters and pushes them all toward the left.  I thought my eyes were going buggy because it is subtle, but when I print and examine a PDF, this negative character spacing is easy to analyze.  Negative kerning is used for type-setting, but not uniformly on every character.  It doesn't seem to matter which printer or which font or font size I use.  I do not see this behavior with M045 on Windows 7.  I don't know yet if it's a Mathcad issue or a Windows 10 issue (although all other apps print just fine).  .NET maybe?   I have a ticket open with PTC, but wondered if anyone else is seeing this, or has a clue as to wh

I normaly use odesolve in a solve block. However, I.m struggling to learn how to use the other ODE solvers with units. I asked AI to provide an example. Sadly, the AI example also failed. Typical (cryptic error messages:   Mathcad Prime 11 file attached.

Attempting to use a range to help determine a solve block but am struggling to get this function to work. Any ideas on how to debug this issue? See attached image.    

I am solving a system of 1D steady ODEs in Mathcad using RK4. The system works correctly until I add a heat transfer term representing two-way coupling between a gas phase and injected droplets. When this term is included, the solver no longer outputs results and reports that the gradient matrix must be scalar or a matrix.The gas stagnation temperature gradient depends on Reynolds number, Nusselt number and a convective heat transfer coefficient that is itself a function of the ODE variables, which vary along z (length of nozzle)All other gradients (Mach, pressure, velocity, etc.) are functions of the same state vector and work correctly when the heat term is removed. I suspect I am incorrectly defining a function within the gradient matrix or using If else wrong.Any help would be appreciated, as I'm going round in circles.below is screenshot of part of code:  Thanks very much