Mathcad

I have Mathcad 15 and I wanted to use excell spreadsheet to show up the calculation results over it and also to use excell spreadsheet to read values typed in an excell table. But I have noticed I can generate only maximum rows 65536 and it looks like Mathcad 15 handles the old version of Excell 2003. Is it possible to do anything to use new version of Excell which can handle up to 1048576 rows and16384 columns?   Thank you for any help

Hello PTC Community,    I am attempting to utilize my Moment-Curvature Interaction (M-C) to calculate beam rotations and displacements. Currently, I have a worksheet that writes my M-C data to a text file (not included here); the attached worksheet reads the data file, creates a linear interpolation function describing moment as a function of curvature. Next, I have a simply-supported beam loaded with equal symmetrically placed point loads (0.5P); I have defined the moment diagram as a piecewise linear function of length (x).    My goal is map curvatures across the length of the beam, using moments as the method for "matching" the curvatures to length. The next step(s) of calculating rotations and displacements are straightforward after this.    The attached Mathcad Prime 3.0 file attempts to solve for the corresponding curvature that satisfies M(c)=M(x), where c = curvatures from the interaction diagram, and x = position along the leng

I'm new to Mathcad so hopping this is just a setup problem. I have set up an equation to solve for t with known variables, one of which is exponent n.  Now i need to rearrange the equation to solve for n.  Please see attached. I don't understand why I'm getting No solution found.  I am able to solve this by hand and also using a free on-line math web page i get the same solution.    Help is appreciated.  

Could anybody help me? I'm attaching the screen and file.

hello i am  having a problem i can't get inverse sin to work in MATHCAD PRIME 4 does anyone know to to get it to work? -Anders Ugilt 

This worksheet implements a simulated annealing algorithm that is useful for the minimization of functions with multiple minima.You can see the example converging in two videos: Video Link : 6848 Video Link : 6849

I am new to Matcad and the ODE Solve function I am confused on how to use the ODE solve function  Any help will be greatly appreciated! Thank you!  

I see one very strange bug! I have had solved a system of 2 algebraic equation - not correct solution! I have simplified its - correct solution! Do you know about it?

The article (English) http://twt.mpei.ac.ru/ochkov/SPB-Moscow-Train.pdf

Hello, I have captured I-phase and Q-phase (quadrature) data of a radio signal with QPSK modulation.  The two data are in two separate text files with an array of data in a list. How do I do FFT using Mathcad please? Thank you

We are unable to load images - started with Prime 3.1 so I installed Prime 4.0 - still can't load image. I click Ctrl+4 and it opens the dialog to search for image file - select file click open and only thing in the file is the dialog box 'Browse for image' I tried .jpg & .gif images same result. Any help?

I am currently using IE11 and most often (like now, but not always !) when trying to access Communities from PTC Mathcad page I get the message “HTTP 500 Internal Server Error” / “This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying”. Have someone happened the same or have any idea why ? (I’m posting now within Chrome).   Best regards, Liv.

Hello,   Does Mathcad have any function to integrate an array without doing a polyfit? If you see attached, I have a 14 point array and would like to find the area under the curve. What would be the best and cleanest way to accomplish this? (Note: I had to attach a picture because it wasn't letting me attach a mathcad file for some reason)

Hi,   I have a question about Mathcad. I want to solve an ODE-system with Parameters. I want to use of Stiffr or Stiffb as a ODE-Solver. I have a minimal example in the file. See also the screenshot. What can i do, to find the error in the code?     I hope someone can help. Thanks    

Dear all,I'm facing again a problem with linear 2D interpolation.In this case I tried to see if the results of direct and inverse interpolation coincide.z=f(x,y) and y=f(x,z).Unfortunately, they don't.Could you please help me in finding the solution of this problem?Attached you see the mathcad file.Thank-you very much for your support.Regards.Enrico

Hi everyone,But is it possible that MATHCAD mistakes the Fourier transform, or am I wrong? I'm really amazed !! look here:

Is there a way to read an mp3 file into Mathcad?   I don't mean a Mathcad Prime 3 file, but I do mean an audio mp3 file, like as in compressed audio.   I can convert it to wav or ascii with some other app and then read it, but I really want to bypass that step and just read the mp3 file in directly.   I'm using Mathcad11 & 14.   Thanks.

I use my uniform load as kip/ft, and try to calculate my moment using kip*in. But somehow ptc didn't give me a right answer. Can anyone tell me what should I do?

I have Mathcad Prime Express 3.1 installed on my computer, and I'm trying to download and install 4.0 - i.e. upgrading.I have downloaded a file 'pim_installmgr_mathcad.exe' and try to run it. It opens up, the PTC Installation Assistant runs up to 100%, Windows pops up to ask me to allow this program to make changes, I say yes - and then nothing. Nothing more happens. It just stops.I have Windows 10 Home 64-bit as my OS.I have tried running it as Administrator - same non-resuslt.Please help - I'm absolutely flummoxed.

Hello,   I write a complex model of a batch reactor. Main goal is to model a thermal runaway of a reaction (adiabtic reactor). In a further step I want to predict the kinetic parameters of the reaction, like k0_1,k0_2, Ea_1, Ea_2 and reaction enthalpie. Therefore I will write a least-square method with minimize or minerr. The unlinear regression needs several measured temperature curves an the temperature curve of the model. The regression part is not implemented yet. My first idea was to write an odesolve function, so that I can solve the DAE-system for different reactor volumes an initial guesses like mass and Temeprature (The measured curves, have different volumes, startmasses and temperatures). Therefore i write a function Startbed. Another part are variable component data, like density, heat capacities etc. This functions interpolate between different temperature steps. Also there ist an UV-Flash calculation. I need it to predict the mass in gas and liquid phase (p

Can I use prediction outcomes y(t) of an ode the timestep before in a solve block?    thanks, Fabian 

Hi,   I have found very useful this: https://mscontact.wixsite.com/mcsec   Have any of you used it?

I would like to create Linkage wich end point writes this: МЭИ - see please the picture! See one animation and attached Mathcad 15 sheet as a start point of this work! Thanks for links and etc! See more https://community.ptc.com/t5/PTC-Mathcad-Questions/Chebyshev-Math-Journey/m-p/536496

Hi,   I am using MC Prime 3. I am trying to see if it is possible to interpret various points using indexes as per the attached.    Basically I have defined various matrixes and interpreted lines between them as a function of z. Then I have used solve blocks to find the z value when the two lines interpreted from my matrixes meet. However, as I am doing many iterations of the same thing I want to know if it is possible using indexes or if there is a better approach? I have never got into MC Programming but guess that might be an approach?   Thanks,   Andy.

I have a variable defined as the result of a function. Worked perfectly the first time. A few lines further down the page, I use the same variable but define it as the result of that same function, only with a different argument. Now it presents me with the mentioned error "This value must be a function".