Mathcad

A unipolar NRZ line code baseband signal is generated and analyzed to verify that approximately 91% of power is contained within the main lobe. Furthermore, the power of this signal is determined via the time domain and frequency domain.

BER simulation of 4-QAM and QPSK

BER simulation of MFSK over an AWGN channel. Theoretical and simulation results are shown to overlay each other for M=2, 4 and 16.

Hi Everyone, I am new to PTC Creo and I am having issues solving a problem.I have a quarter inch tubing, 0.02" wall thickness, aluminum tube that is clamped on both sides ( ends can't move ). I know the acceleration vs. time of the mid point.I am trying to get displacement and strain of the bar vs. time. I would like to be able to input my acceleration vs. time table which I obtained from experimental testing.Is this possible ? and if so how could i do it ? I am really new so patience is the key with me if possible Thanks so much guys,Thomas

Hi All,I have a problem. Here I discribe the case. A triplex plunger pump will produce water hammer. This will create a sinus wave, by opening the inletvalve and closing the inletvalve. I have 3 plunjers so 6 vibration sinus. I like to sum these sinus. See my enclosed worksheet.by calculating with my hand calculator I get an answer. In mathcad I get only 'zero' (0). What do I wrong.

I am creating a document in Mathcad 15 that is evaluating thermal resistances for me. For my own ease of use, I wish for all the resistances to be in units of K/W. Right now they default to K*s^3/m^2*kg. I know I can make each individual one go to the correct units by typing it in the right side after it's been evaluated. I have literally dozens of these resistances, and it is a real pain to have to change each individual one. I was hoping there was some way to tell it to automatically change K*s^3/m^2*kg to K/W. I've been messing with it for a while and can't figure out how. Anyone know? Or is this not a feature of Mathcad?Thanks,Alyssa

See attached.Alan

Hi Friends,Is tehre any windchill java pdf is available for how to use the windchill java api?Can u please help me out ?Regards,Sandeep

OFDM signal generated using K subcarriers with M = 16 QAM. The real samples obtained via the inverse FFT are shown to lie on the OFDM baseband signal. The signal points generated randomly at the transmitter are demodulated.

Hello. Thanks in advance for your time and help. Regards.

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