Mathcad

Mathcad Prime 9 Hello Mathcad experts, I want to create a spill area as a function of time for transient evaporation calculations.  I currently use a formula developed by Dow Chemicals from the late 70's to calculate in the radius of a spill for a given time with an assumed rate and volume.  This formula is iterative.  See Yellow highlighted for manual manipulation.  I am currently manually changing the time intervals and entering the resulting radius and time into a matrix and then curve fitting to make an area function.  Once the volume has been spilled, I assume the area no longer grows.  This seems possible to automate with programming.  I'm a novice programmer and have been working diligently without much success.  I mostly am having trouble with the iterative formula. See attached Prime 9 excerpt of my calculations. Help would be greatly appreciated. Regards, Colin  

Hi, We are trying to create viewables from our MathCAD files and to save them to Windchill, where other users (who don't have MathCAD installed) can check the files and optionally comment on them. From the documentation we can find that it should work as follows:Create MathCAD and checkin to WindchillClient side viewable is automatically created (Mathcad Checkin) by setting "Models and Viewables" in wgmclient.iniHowever, the viewable is saved as Viewable.PVZ and included as attachment to the MathCAD sheet. Attachment can only be downloaded and not opened.Also the PVZ file can not be opened using Creo View and thus not be annotated and saved back to Windchill.Below the error message when opening the downloaded PVZ. This is because the PVZ only holds a pdf and no structure.Is there a configuration step that we're missing or does it work as designed? Is there a way to save the viewable as PVS (which can be opened by Creo View) Only workable solution now:export MathCAD to PD

how can I obtain total value or to perform multiplication within the table?  

I am trying to find the angle from the equation pasted below. In Matlab, I got the angle and it is about 104 degrees but I cant solve it in Mathcad.  I have attached the Mathcad 9 sheet.Best,Waqas     

Hello, My colleague is using Mathcad Prime 7. He was trying to convert a Mathcad 15 file using the convertor. For few files, he is getting the conversion status as Failed. When we check the log, we can see the below error message. Has anyone seen this issue before, and if yes, how did you solve it?   Exception data: System.Runtime.InteropServices.COMException (0x800706BE): The remote procedure call failed. (Exception from HRESULT: 0x800706BE) at mcautomation.IMathcadWorksheet.SaveAs(String filespec, MCFileFormat Format) at ConverterLoader.XmcdToMcdxConverter.StartConverting(String originalFileName, String destinationFileName) at ConverterLoader.XmcdToMcdxConverter.TryConvertWorksheet(String originalFileName, String destinationFileName) at ConverterLoader.XmcdToMcdxConverter.ConvertWorksheet(String originalFileName, String destinationFileName, String mathcadVersion)  RegardsVijay

Hi,Can someone help converting the attached xmcd files to MCDX (mathcad prime 8.0 format)?    

Hello, I read an excel file into MathCAD and created a matrix and was able to plot the figure. The data is current through a switch. I want to delete specific regions of the graph, namely some spikes (see attached file).  Is there a way to do this?  Thanks 

Hi folks, I am trying to solve a PDE in MathCAD Prime 9.0. Can one use units in the Solve block with Pdesolve?I have found that odesolve is units aware.Thsnks, Ted    

Can somebody tell me what is wrong with this definition?See attached Prime8 sheet  

Can you give me a proposal for the fastest possible way for excluding all non-integer values from array? 

Every function, which is called with an argument of NaN should deliver NaN as a result !Some functions deliver odd values such as log, ln, or ln0. Very problematic are the functions min and max which deliver min(NaN)=0 and max(NaN)=0. This can lead to incorrect results, as it was the case in our calculations. This error occured with Prime 8.  

Hi guys, so I am having this problem with ploting graphics, I only need to do this simple Fourier Series and plot it, but it doesn't work. I will show the problems with some images and the program itself.   

Hello, how can I find position of known element in matrix if I know that element exists in matrix (column and row index). I tried with match function and I put small value for tolerance (as you can see in attached file test.mcdx) and I'm getting 2x1 for which I know that is not the right position. Also, it would be nice if you propose me the solution with separated index for column and for row.Thanks in advance!

I am using Mathcad Prime 5.0.0.0, Windows 11, for the first time as instructor in a civil engineering course having taken over from the previous instructor mid-semester.  (Ordinarily I use Matlab.)  My worksheet is supposed to solve the differential equation for liquid spilling out of a small hole in a tank modeled by the ODE dh/dt=-K*sqrt(h) in two ways: odesolve and rkfixed.  Here are the glitches I encountered: 1. Plotting functions h(t) (the exact closed-form solution) and q(t) (the output from odesolve) did not work for me.  I received an error message about complex or infinite values.  However, it is clear from its formula that h(t) cannot take on infinite or complex values.  In addition, Mathcad repeatedly changed the units of the t axis from s (which I typed) to 1/s * s, which is incorrect. 2. The exact solution to the problem exists and is well defined up to about t=85000,  After that point, the tank is empty and the ODE is undefine

I recently installed Mathcad Prime 9.  I had been using Prime 8 for a while. I have some files created with Mathcad 15 files (xmcd) that I need to convert to the new mcdx format but the conversion utility is taking a very long time to do the conversion.  It's been on "In Progress" for almost an hour on the first file.  I don't recall this being such a problem with earlier versions (Prime 7 and Prime 8).  Please help!   

Hello,For 2D plot we can see labels somewhat on the axis to see what axis is assigned to what variables for better understanding:     My question here for 3D plot: Is it possible to put labels on the axis like I shown below?    

Hello, But also we can see that if:     Why Mathcad (at least Prime 8 ) does not want to show all solutions of an equation?  

Is there any way to form trochoidal wave from its equation of any values if X and Y.  

I want to use two variable version for a surface plot for a single variable data fit by setting the another variable to zero how to achieve this? Can someone share an sample example 

Hello, How to turn this column vector intro a line vector (like shown below)?   Mathcad Prime 8 file attached.

Hello,         I want that x and y to be in a single matrix with 2 columns:    

Hello,Why I see that interruptions from below when I draw circles?       MC Prime 8 file attached.

Hello,Is it possible to make such kind of 3D plots in Mathcad Prime?Those plots from below are only some examples to give you an idea of ​​what I mean, but if you have other examples then they are welcome.      

Hello,1. Given the below points: (x1,y1), (x1,y2), (x2,y1), (x2,y2), how to make a rectangle in Mathcad Prime based on this points?   2. Given the below points: (x1,y1), (x2,y1), (x3,y2), how to make a triangle in Mathcad Prime based on this points?