Dedicated forum for our customers to share, collaborate, discuss best practices.
Recently active
HelloIm writing my master thesis and the idea is to have a reference file for all functionssadly if i do not write out the variabels before the function, i need to "call them" in the function nameending up with a function with 20 variables such asfunc(a,b,c,d,e,f,g, etc etc) and the function will not fit in a printable areaMy idea is therefor to put all values equal to 0 in the reference file and then rewrite the values when the reference file is usedsadly i fail to do so since the values from the reference files are used even when I rewrite them.The idea is that i want to do something like this, and in the "regular file" get the value 2 instead of 0I know this is a bad function but its used only to demonstrate my problem. Is there any way to rewrite the values from the reference file?Or do i really have to end up with a function in reference file as "func(a,b)=..."Appreciate your help since this is the last step left in my master thesis and all the programming is done properlyIm using
Hi,Usually, data are given by a chart/figure in picture form, such as JPG,TIF,BMP,PNG... Like below, it is the V-I charactristic of a diode.I want to get the V and corresponding I value, then I can get a fit function V(I) (or I(V) ).Although,we can read several more exact points by eye-measurement, and then get a fit function. I think the fit function will be more precise if we read more points.How can I do to extract as much points as possible? Any help will be appriciated. My MC version is "Mathcad 15 F000".
Hello,I am looking at trying to get a best fit curve line, say a quadratic to the data function at the bottom of document. My intent is to program in the dP(m) for the most part, disregarding the temperature and the pressure as those don't have a drastic effect on the curve considering my dP meter is from 0 to 20" of water. (about 3% at most)I was unsure if there is a simple way in mathcad rather than finding 3 pionts and setting my data to those 3 points for a best fit, to use the gen fit to find the coefficients.
To allI am looking for the backbone of a mcad sheet to convert Shock Spectrum Response (SRS) back to a Time history. Does anyone out there know where one can find such thing?I have found some MathLab script(s) but nothing (so far) in mcad formatThanksRegardsJXB
I want to be able to show which load combination was chosen from the max function in order to make it easier for people to see which load combination was chosen for the design strength. I would like to be able to use a text box for this, but if that is not possible then that is fine.
Hi, I've just seen an article on a high accuracy numerical integration method that I hadn't heard of in http://www.codeproject.com/Articles/31550/Fast-Numerical-Integration (links to [3])This is the techniques of "The double-exponential transformation in numerical analysis" by Masatake Mori and Masaaki Sugihara in the Journal of Computational and Applied Mathematics, volume 127 (2001), pages 287-296 [1]. Its discovery is in [2].I've often seen mathcad integrals "fail" when folk forget that they have plotted some log-log function that ends up as a spike on a lin-lin plot. I'm not yet sure how well this technique would work within mathcad, but I thought it worth sharing.Has anyone else used or studied this method? If it overcomes the lo-log problem it would be great.Philip.refs:[1] http://www.sciencedirect.com/science/article/pii/S037704270000501X (I was able to download it)[2] http://www.kurims.kyoto-u.ac.jp/~okamoto/paper/Publ_RIMS_DE/41-4-38.pdf Discovery of the Double Exponential Tra
Hello,please attached sheet. i would like to be to add the spacing dimensions and create running dimensions. Thanks!
I want plot a matrix with two columns which contains a NaN point by 2D line plot in MC15M030, and like the picture below:the last two points has not line between them, and when I change the order of the two points,then the line appears. And I try to plot the first picture in MC11, the result is right.Is it a bug of MC15M030?
Hello everyone!I have a big problem with MatCAD and my Laptop.When I try to print (both Adobe PDF printer and my home printer), MathCAD print an empty spreadsheets with only the logo on the headers and the ruled. Nothing else: no formula, no text I wrote.Attached you can find an example.I use a MacBook Pro 13'' (last gen) with Bootcamp and Windows7.I have tried printing the same files with other PC and all is ok.Could anybody help me? Thankyou!Carlo
Hello, Everyone. Meaning of _z1 ? Thanks in advance for your time and help. Regards.
Hi,I have a function that is defined by different equations, based on an "if" statement. both the equations and the conditions depend on coefficients stored in vectors. I expect, as a result, a function that returns a vector. I have tried several syntaxes, but I can't find one that works. Either i don't put the index, and the condition fails (comparing a scalar to a vector), or I put the index and the function fails to find a result (although, if I set the function parameter as a fixed variable, the content of the function is evaluated correctly).Is there a proper syntax to get it to work ? Thank you very much.
Has anybody an explanation why the symbolic solve produces that many wrong solution if used without the modifer "fully"?May we call it a bug? Are there other examples?
Hello, Everyone. Is there a way : ln(e^x), symbolics, ==> x ? ( Mathcad 14 ) Thanks in advance for your time. Regards.
In the attached worksheet I have a summation that works with one matrix variable but when I add another matrix variable it doesnt work. Do I need to use something instead of the list command? Thanks
Bonjour,Je suis à la recherche d'information sur ce que l'on peut réaliser avec Mathcad.Un client me demande de mettrre en ligne une worsheet dans un environnement serveur.J'imaginais stocké la worksheet dans un site sharepoint comme j'ai trouvé sur google ce lien.https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CC4QtwIwAQ&url=http%3A%2F%2Ffr.ptc.com%2Fappserver%2Fwcms%2Fmedia%2Fstreamed.jsp%3Fim_dbkey%3D117604&ei=bbK7U4exI-_T7AawnoCoCQ&usg=AFQjCNHtcMDqQHWzWyRGjb7LS-U_ARVe0Q&sig2=KhcQwMUuZyCxD7GnH39JXQ&bvm=bv.70138588,d.ZGUMais ma question pour aller plus loin est il possible d'interdire la fonction saveas dans mathcad? de lire un fichier mathcad directement en web sans avoir mathcad sur le poste client? via une api par exemple?En gros à la recherche de document sur le partage et protection de fichier mathcad.J'ai vu la commande protect worksheet mais pas bien compris son focntionnement même en cherch
Hi..Can anyone help me writing these equations in Mathcad...?
Respectedcan you help me.In att. you can find two documentsa) Analysis 1 without units - its OKb) I would like to use units in my worksheet Analysis 2- without units but there is a problem -why ??Thank you
PleaseCould you tell me what is wrong with this sheet (in att.).Thank you
Hey!I'm wondering if there is a way to get more than one output from a program in Mathcad Prime? In my case it is a for loop and I would like to output both a message and a parameter (1-by-2 vector).For example:test = "Error in:" [3,5] ...or something like that.Where "test" is the function I'm using.Thanks in advance!
Could someone tell me how should I do to maximally simplify, using the symbolic processor, the following expression?
Can anyone obtain a solution using Odesolve in the attached trial worksheet?
I have Mathcad 15 installed on a Windows 7 computer. Everything works fine except when I want to create a scriptable object (or web control). If I open a file that had scriptable objects in them they do not work...they appear with only small arrows. See attached. I tried registering these as indicated in another post I found online:MichaelH wrote:I stumbled across the solution to this while looking form something else in the Help files.For some unknown reason, the components (.mcm files for text box, list box, and so on) were not "registered" in MC15 when it installed, although they were in the Mathcad folder.The problem is solved by finding "mcmreg.exe" and opening it. A dialog box appears showing various folders. You then navigate to the folder where the .mcm files are located (typically C:\Program Files\Mathcad\Mathcad 15\mcm) and select all the .mcm files and click open. Another dialog will appear indicating that all the files were registed.That's it.
Hi,I am trying to learn PDE in mathcad,.. Its my first time with PDE, could anyone pls help me with this?Thanks in advance
Hello,I am trying to use a solve block to find values for two variables but am running into difficulties. It seems that I am always getting an error "variable is undefined". After searching the forum it seems this is the standard error from a solve block and doesn't really give any clue as to what I'm doing wrong. I originally suspected that I was having issues since I was making use of functions with conditional statements, but after experimenting and removing the statements I am still not getting any results. Manually, I can come close to getting a solution.Please see attached sheet. Thanks.
hello, i want to evalute the interation symbolically. but i am not able to do it with mathcad. please help me to solve this. i attached the problb sheet.
Already have an account? Login
No account yet? Create an account
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.