Mathcad

Hello to all,  I've already look a lot in the forum, but I just couldn't find an answer to this, I guess, simple question. I have a matrix like this:        I want to extract the data from the fifth line of all the {5,1} and throw it in a different array. I have tried using Ctrl+6, but with no success. The second point is that I want, then, to create a 3D plot with the results. Anyone has a hint on how to accomplish these two matters ?   Thanks in advance,   Ricardo

We have created some windows programs to control input-Vars in prime 3.1 worksheets. This worked fine for Version 3.1 but not in 4.0: Mathcad prime crashes after sending some input vars. The error message refers to a corrupt heap. The automation dll of version 4 was referenced.   To verify the issue between Mathcad 3.1 and 4.0 I have created a worksheet in Mathcad 3 and imported that to Mathcad 4. I have also created two client-applications, one referencing automation dll of version 3 and the other to version 4. The line ClientApp3+Mathcad3 worked fine and ClientApp4+Mathcad4 crashed. The worksheets had identical content. Is there a bugfix available?   Mathcad Prime 4.0 Version: F000 (2017.02.26.001/4.0.0.54)    

[Issue Report] Some areas is damaged and cannot open in MathCAD Prime 4.0 M010 I just put some equotions in these areas. The mathcad file has error after i save the files and open it again, the error picture like these: And the error reason in log file is: "An unrecognized structure in the data format "XamlPackage"."                       I can't fix the .mcdx file, how to avoid this problem? Error sample file and log file in attatcmnent:

hi all,  I have some parameters followed by some calculations. When i change a paramter above, the recalculation throws an error (circled by red box). I have to "disable" then "enable" the calculation region to get it to recalculate without error.   what can i do to get the sheet to recalculate properly?

Dear all,   I have to solve a nonlinear system of equations.   y1 = a11*x1 + a12*x2 + x1*x2...  y2 = a21*x1 + a21*x2 + x1*y1...  And so on...   So far, so good, solving the system is a piece of cake with Mathcad. But the thing is I want to solve the system for different values of, for instance, a11. I want to solve the system for a11 = 0,1 then store the result in a matrix, then for a11=0,2, store it, then solve it for 0,3 ... Here is where the problem starts since I'm having a bad time trying to use solve block inside a "for" loop (each iteration modifies the value of a11). Is this possible ? Are there any examples out there ? Any other options ? Thanks in advance.

I try to get formula for ellipse area in polar coordinates. I've got it but symbolic result is wrong. I can`t understand why? One more example with strange behaviour  

I set all the interfaces property to "Middle", but the results is still different between TAE automatic cacultation and MathCAD manual caculation, what kind of influence does interface makes to the caculation process? Would you mind tell me the fomula? (In this picture, you can see the results is different between TAE automatic cacultation and MathCAD manual caculation)  

I have inserted a Table in Mathcad Prime 4.0. If I select this table and want to move it within the sheet (select it twice to make it blue) the Table jumps to a region some 100 pages further down. Am I doing something wrong? Wybe

Hi!   I want to simulate the accuracy of the Euler-Polygonzugverfahren with MathCad. The allgorithm is a numerical approximation which the accuracy depends on the variable "n" with a programmed recursive function of the velocity. (I'm not that familiar with programing) Now my problem is: How can i display this function for n=6,10,20 timesteps in one diagram to visualize the accuracy?   Thanks in advance.  

Good Evening Mathcad Community,   About a week ago the following people have been help me with programming from translating Matlab into Mathcad on Wilson Theta Method, Werner, FM and Jamie. Now that the problem is solved, I'm trying to read in matrices Mass matrix, Stiffness matrix, Damping matrix and an external force vector into the function but get comfused with the n by n matrix into the function. Would any member of the community please see what I'm doing wrong and help me the code is below the function. I have followed Werner's work on previous worksheet. If I get this to work my goal is to solve the problem below the function on dynamic analysis for foundations. Please attached.

Dear fellow Mathcad users,   Please see attached screenshot, I am trying to find Variable rT (top row) for a given value of rR (left hand row) and a second variable called S (the numbers in the body of the table).    I think the solution will be found by initially creating a submatrix that is one row high based upon the variable in the left column, and then outputting the variable in the top row based on an interpolation of the new submatrix.  I am trying to get to that solution, but my efforts are so far in vain, (I have been trying to adapt the Mathcad example attached to my needs but no success yet).  Note that I want to linerly interpolate, and not to generate a spline.   Any help on this would be much appreciated.   Best regards, mrretsil

I use a 3D plot VBscript component inside MathCAD 15. This component has an input variable. When I put an array of several vectors (or matrices) as input variable all is OK (VB gets it as Variant and I can loop over its elements). But when the input variable is an array of only one vector (or matrix) VB gets it as Double and the value of this double is -1.#QNAN. So I can't use input variable for the next calculations.Please see attached file for reference.

I am simply trying to write a for loop that takes in an array and does some algebra on each number in the array and puts the result into a new array.    I have attached the function(num,array)  whcih take in: num=the length of the array and array=my already made array. For simplicity of working on just the loop and arrays, I have made the algrebra portion just adding the number 1 to each value in the original array being sent into the function.    Once I understand what I am doing wrong I can add in the actual math, however I'm stuck on how to make this for loop take in an array and return a new array. I know this is basic but I do not have any other instructions on mathcad other than the user manual and internet searches, however I still can't get it.    Please help. Thank you.  Brittany      

Hello, I want to insert a collapsible area in MathCAD 15 document. When I do this, the area extends from the first page to all the page to the right. Is there a way to resize the area to be confined within the page that it is inserted in?

I met some problems on calculation accuracy in MathCAD, I hope friends in this forum could help me. I really appreciate your help.

[Issue Report] Areas left border cannot be printed normally I want to print a mcdx file with area, but the left border line can't be printed normally, i have used several printer software but all cannot print ok such as: PDF Factory Pro × foxit pdf printer× microsoft print to pdf ok，but when i use microsoft print to pdf print again × The reason is left border is too thin to show clearly, i think it is software problem, could you fix it, please?  

[Issue Report] Exception error because of "The dispatcher process is pending, but the message is still in processing" Mathcad log Exception data message is "The dispatcher process is pending, but the message is still in processing": Exception data: System.Object: System.InvalidOperationException: 调度程序进程已挂起，但消息仍在处理中。 在 System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) 在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) 在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)     MathCAD Prime 4.0 M010 crashes easily, please improme its Compatibility and reliability, please.

Hi. I'm a new one here.   Maybe somebody knows where is the catch why the result is a matrix with [1x1] result (pic. in attachment).   Thank you in advance for your help.   Regards, D

I am trying to work out how to calculate all the paths from each cell in column zero to the end column. This is part of project to calculate the remaining strength in a material.  The matrix represents a grid on the material.  Each cell in the matrix contains a measured parameter at a location on the grid. I need to calculate the sum of all the paths available from each of the cells in column zero.  The path can progress one cell up or one cell down or one cell across.  It can never go backwards.   In the attached file is a grid of 5 x 7, with fictitious data.  In reality the grids are more likely to be 20 x 40.   I can see how to do it manually but I cannot see how to do it within Mathcad.   Any direction or guidance would be appreciated.   The system will not allow me to attach a file. "The contents of the attachment doesn't match its file type", which is nonsense because it is an mcdx file.       Thank you

I know prime plotting is lacking, but is there anyway to specify which variable a set is plotted against?  In this simple example I seem to need two x's, while it is perfectly happy to stack up the y - provided it comes last.  Can I show a single x and single y on the abscissa?  4.0 attached. This is what I have (2 x's): I'd like this (1 x): (paint mockup)   Thanks,

Can anybody point me to my error. I can't get a decent fit for my data; see attached MC15 file.   Thanks in advance   Raiko   P.S. For some reason the website does not accept the MC15 file claiming that "...the contents of the attachement doesn't match its file type." henec, I've added a pdf.

Hey , can anyone help me with that failure in my code? I want to understand this.   Best thx , Stefan