Mathcad

I'm a little confused about the limits for solve blocks. In the snip from the MC 15 Help file below, it says the Levenberg-Marquardt solver is unconstrained. Yet it then says nonlinear systems can contain up to 200 constraints. Seems like a conflict if an equation is considered a constraint. I may have my own answer, but I would appreciate some confirmation.So what does the Help file say about constraints? The next snip shows.Note in particular item 2. The first sentence is ambiguous...it could mean that equations and inequalities are both constraints, or it could mean that inequalities are the constraints. Reading on, "Use the following operators to create these constraint:". The list includes the equals operator. So to me, this says that equations are included as constraints. So how can you solve for an unlimited number of variables with only 200 equations, or less if you've used inequalities also?Then there is item 3. Again it mentions an equation or system of equations to solve. Th

We can choose in Mathcad 15 on method of ODE solution - Adams/BDF – смешанный алгоритм Адамса и обратной формулы дифференцирования - default; - Fixed (интегрирование с фиксированным шагом – на сайте http://twtmas.mpei.ac.ru/mas/worksheets/Euler.mcd можно увидеть сравнение этого метода с методом Эйлера); - Adaptive (интегрирование с переменным шагом – http://twtmas.mpei.ac.ru/mas/worksheets/rkadapt.mcd ); - Radau - алгоритм RADAUS для жестких систем ОДУ. We cannot do it in Prime o you know what method we use in Prime?Find please the answer here Video Link : 5779

Bei mir kommt immer die Fehlermeldung : Fehler bei der Registrierung des ModulsIch würde mich freuen , wenn mir jemand weiterhelfen könnte!mfg

In this simulation of three gravitating Newtonian particles, a blue "planet" orbits a red "star" until they meet the "dark star." The physics is simple, yet the numerical behavior is extreme. Indeed, Mathcad's numerical integrators have difficulty modeling the motions correctly.     Unable to play video. Please try again later.(view in My Videos)

Hello,In the attached program, a series of frequencies is measured using Fourier Transformation. The slope of the measured frequencies vs the actual frequencies shows a linear relation but the slope is not exactly "1". Could you please help me to understand why the slope is not exactly "1" ? Is the any analytic relation between the uncertainty and sampling specifications?Thank you very much in advance.Payman

Guten Abend!Ich hoffe jemand kann mir eine Antwort auf die oben gestellte Frage geben.Liebe Grüße

Hello All!I have an important project and the program doesn't open my file.It showed me an error: The file type is not supported. Could somebody please explain me how could I recover my data. It is really important for me.I hope somebody can help me... (file attached)Thank you very much!BR,Zoli

I attached file with solution for beam on elastic foundation using Bleich method. I am struggling with the graph of shear forces. When i use dimensionless variable xi for graph plotting everything is just fine but once i convert the dimensionless variable to one in meters ( dividing dimensionless variable by certain coefficient alfa, relation defined at the beginnig of the worksheet) i am getting discontinuity of the graph and have no idea why. Also trying to find place using find function where Q(xi) equals zero( should be between two peaks) i result in failure. If anyone could provide any helpful advice/answer i would really appreciate it.

Discover how easy it is to create, manipulate and explore with three dimension plots.Link to the video on YouTube, http://www.youtube.com/watch?v=O4nKH8LN3lE&hd=1Run and upload your own demo of creating 3D Plots in Mathcad Prime 2.0

Can someone help me with this file? I cannot plot the graph, even though I get values at various point along the curve.Thanks

Hello,I have little trouble with print table from excel to pdf. I copy table from ecxel and paste as special as excel sheet to Matched 15 and than I can not print table as in view. It prints me just black square. Example is in attachment. I use adobe printer.Thank you.

Hy!I have a really important project deadline tomorrow and the program doesn't open my file.. I am using Mathcad Prime 1.0. Last time I used it, I properly saved the file and when I tryed to reopen it, it showed me an error: The file type is not supported. The file doesn't have any pictures in it. Please explain me how could I recover my data. It is really important for me.I hope somebody can help me...Thank you

Hello all,I work on modeling / simulation of some thermal energy system in Mathcad 15. The existing model works on the equation oriented approach, at the end all the mass and energy balance equations are gathered in the given-find block. Now I want to "modularize" the program - the components of the system are to be black-boxes, which have inputs and outputs (more precisely input and output streams, which are vectors of parameters). I was thinking about defining modules as functions, but the problem is I can not use boolean equal sign inside a function, that I need, since the whole system of equations / functions can only be solved numerically, in case of Mathcad in Given-Find block. So, every black-box would be expressed asFunction(X,U) = YwhereX - vector of input streams (if particular black-box has more than one input stream this vector will often contain nested vectors)U - vector of internal parametersY - vector of output streams (if particular black-box has more than one output st

Video Link : 5984

This beam worksheet is attached in Mathcad 15 and Prime 3.1 format. The end user enters the number of point loads, p, and the number of distributed loads, z. Is it possible for Mathcad to take this value entered and create/trim the number of entries for point loads (P1, y1) and distributed loads (ws1, we1, zs1, ze1) following them? This way the end user doesn’t have to trim off or add additional entries on their own.

Video Link : 5980

See the animation here Case 21: 2 planets and 2 satellitesTwo frames of the animation:One question?Can you using my Mathcad 15 sheet create one stabile (more interesting) case?

I would like to filter the table returns using a variable in Mathcad.

Any one can help me to simplified the mathematical expression with a constant value of c1. I am using Mathcad prime and I need to get the (le) result considering that c1 is a constant value.with Attached file

Recently I've converted some my Mathcad 14 worksheets for use in Prime 3.1 using PTC's converter. The converter seems to work well be leaves lots of red arrows and red margin marks. How can this marks be removed from the final sheet? I can't seem to click on them.

Why mathcad round, for example 1.25 to 1.0 in my equations? And what can I do to solve this problem? Thank youPourquoi mathcad arrondi, par exemple 1.25 à 1.0 dans mes équations et que puis-je faire pour régler ce problème? Merci

Greetings, all,I am using MathCAD Prime 3.0. I am attempting to model 1D advection-dispersion in groundwater using, strangely enough, the advection-dispersion equation. Where the problems start is getting the results out of the model. I've attached the MathCAD file I'm having issues with.I set up the function, which takes two variables, x (a length) and t (a time) I am able to create a range variable, k, going from 0 m to 1200 m in 10 m intervals. I use this range variable to create a nice set of plots.Now, what I want to do is evaluate the function C(k,t). The results appear to go into a table. But I cannot figure out how to:a) Export these results to a text file or;b) Include these results in an Excel file Ideally, I'd like to be able to assign a variable, or at least a vector, to the results, so I can manipulate them later. But I can't figure out how, and I've been struggling with this for about a day now. I am a fairly new MathCAD user, and find the documentation a real struggle. T

Hi there,I'm an experienced user of Mathcad and use Mathcad 15.0 (M010 [MC15_M010_20110622])I encounter many bugs. Here is one.Atached is a program concerning calculations on gears. Nothing complex, but with many variables, just following the norm. On many of the variables I need two or more [=rows(z)] values. In this case two. Use index j for that and ORIGIN=1.In the course of the program several variables with index j are calculated. Some go wrong and show a complex answer; I corrected the values adding an extra formula row for index =1. These, in fact unnecessary lines, are marked with an A in front of the line. You can test by deleting an A marked line.The program produces a matrix of 2 * 24. The columns are defined at the last row of the program.Can you advise me on this one?

How can I put the correct summation in my formula ? If you will see D seen undefined.With attached Mathcad Prime ..

I was trying to do some basic calculations for the cooling cycle. Multiplication/addition/division/etc. with some variables I set. Turned off computer and when I went back to continue I get this error:The file type is not supported. Log file is located at: c:\ProgramData\PTC\Mathcad Prime\Logs\Mathcad Prime_Exception_20150407_164625.logI was wondering if there is any way to get back at the file without having to start over from the beginning. Attached is the mathcad file I was attempting to open and the Log file referenced in the error.