Execute mathcad from Matlab

Hello,

We want to open, change variable and run a mathcad sheet from Matlab.

Is that possible and already exist ?.

Thanks

[Walter Roberson]

https://www.mathworks.com/matlabcentral/newsreader/view_thread/165536

https://www.mathworks.com/matlabcentral/answers/83749-using-matlab-to-drive-mathcad

https://www.mathworks.com/matlabcentral/answers/286495-using-mathcad-from-matlab

[Thomas]

Thanks. Your code is useful but it seems I cannot get the variable to be updated. I am posting here the code and the attached mathcad file.

h = actxserver('Mathcad.Application')
h.visible=1     % make the application visible!
h.methods       % these are the methods that are available at this level
h.invoke        % these are the actions that can be invoked at this level
inspect(h)      % more investigation of the application inteface
h.worksheet.invoke      % One level down in the interface - the worksheet level
sht = h.worksheet.Open('Enter your path here .... \test.xmcd')
sht.GetValue('A') % Works !!!
val = sht.GetValue('A').Integer % Answer 5 - Works !!!
SetValue(sht,'A',7) % Does not Work - A variable is not set to 7 !!!
val = sht.GetValue('C').Integer % Should be 7+2 = 9 Does not Work !!!

Any help is appreciated on why the variable 'A' cannot be changed.

[Thomas]

Hello All,

Finally got it to work. FOr Matlab to assign a value to a variable into Mathcad, you need to make sure that the Variable is not pre-assigned in Mathcad.

If you want Matlab to assign the value 2 to the variable A into Mathcad. Matlab will not be able to change the variable value if Mathcad has A:=1 or any other value. For Matlab to work you need A=1 or any other value or A by itself.

I am enclosing the example.

Hope this helps others.

[John D'Errico]

Geez. Is MathCad still around? I used it for a bit in the 80s. My impression at the time was it used low quality numerical algorithms. (Admittedly, it was quite new at the time.) Then when I contacted the people who wrote it, explaining the problems they had and how to fix them, they seemed to be a bit clueless about things like algorithm design, etc. Yes, that was around 30 years ago, and after a few years the software simply seemed to have disappeared. I imagine the company probably got bought out.

I'm sure that since it has somehow survived, things got better. One thing different about MATLAB is that from the very beginning I was always extremely confident the creators of MATLAB knew what they were doing.

[Marie Carmen Landivar Guartatanga]

John, you had be surprised. At least in my branch of work, a teacher did a survey, and 7 out of 10 companies used mathcad. Only one used matlab. It depends really. My career is full of calculations with long formulas. Yes, they can be done in matlab, but mathcad offers the visual part, plus you can do simple algoriths if needed. Though, programming in mathcad is a pain compared to matlab. It depends a lot in what you are working at.

[Kevin Merene]

If I wanted to get the values of an entire array rather than just a lone integer, how would I do so?

Answer 1

[Kapil Gupta]

I assume you want to know how you can execute mathcad from MATLAB. The following links have similar queries, you can check these out:

https://community.ptc.com/t5/PTC-Mathcad/Running-a-MathCAD-worksheet-from-MatLab/td-p/47373

https://community.ptc.com/t5/PTC-Mathcad/Matlab-data-to-Mathcad/m-p/354747

[Brian Godfrey]

I am having an issue with MATLAB 2020a interfacing with Mathcad prime 7

I tried using your first link but I ran into an issue when trying to open a file

>> h = actxserver('Mathcad.Application')
 h =
 COM.Mathcad_Application
 >> h.invoke
Quit = void Quit(handle, Variant(Optional))
CloseAll = void CloseAll(handle, Variant(Optional))
SetOption = void SetOption(handle, MCAppOption, Variant)
GetOption = Variant GetOption(handle, MCAppOption)
GetStringProperty = ustring GetStringProperty(handle, ustring)
GetIntProperty = int32 GetIntProperty(handle, ustring)
>> h.methods
 Methods for class COM.Mathcad_Application:
 CloseAll Quit delete interfaces propedit set 
GetIntProperty SetOption deleteproperty invoke release 
GetOption addproperty events load save 
GetStringProperty constructorargs get move send 
 >> h.worksheet.invoke
Add = handle Add(handle)
Item = handle Item(handle, Variant(Optional))
Open = handle Open(handle, ustring)
Remove = void Remove(handle, Variant)
AddFromTemplate = handle AddFromTemplate(handle, ustring)
>> h.worksheet.methods
 Methods for class Interface.CF1EB3FD_6EAB_4D71_8A1B_247F85CD2F66:
 Add Open delete get release 
AddFromTemplate Remove deleteproperty invoke saveobj 
Item addproperty events loadobj set 
 >> h.worksheet.Open([pwd,'\NewDesignInputs.mcdx'])
Error using Interface.CF1EB3FD_6EAB_4D71_8A1B_247F85CD2F66/Open
Invoke Error, Dispatch Exception:
 
Description: Failed to open document.

any help would be greatly appreciated

Answer 2

[mizomov]

[Walter Roberson]

I am not at all certain, but that appears to be asking to perform certain steps within MathCad or MATLAB.