Mathcad

Hello   I used Mathcad 15. Due to termination of Mathcad 15 I am forced to switch to Prime. I used the internal conversion tool in Prime 7. The converter shows me several hundred conversion problems (converter is unsure if the conversion is correct...) Sometimes the conversion works. Sometimes not. Even if I converte the same file several times. I also observed the behavior that if I convert the same file multiple times I receive different conversion results.   Now I want to export my Mathcad15 in MathML. Not in simple HTML. I want a real MathML. I already exported the mathcad to HTML. But this export is .... "suboptimal". The formulas are exported as images. I can not copy them in a useful way.   --> Is there a way to export from Mathcad 15 into MathML? (Export from Prime in MathML is not suitable for me because the conversion into Prime does not work). --> Is there a plan/date when the converter (MC15->Prime) is fully functional?   Best regards   Mar

Hi, i need to convert my solution to MC prime 3.1 free. Would anybody help and convert it for me?

Hi, I am trying to optimize the solution of minimization function depending on the intial guess values. Surprisingly, my solutions are independent of initial guess values even though the function has several local minima. I am attaching the Mathcad 15 worksheet for the refrence. Any help will be highly appreciated!     Many thanks S

Can any of the "READ" functions in Mathcad Prime 7 import a text file to a vector of lines, whilst retaining all leading and trailing spaces?   I can easily write a short function using READBIN to get the job done, but I'd rather just use one of the READ functions.    Unfortunately,  I'm having a minor brain meltdown due to the extreme temperatures and humidity we're experiencing in my part of  Scotland (25 C and 64% RH), and I've gone option blind.   Everything I've tried ends up losing leading or trailing spaces.   Cheers,   Stuart

I'm making a thread calculator.  In order to check whether user input returns a 'typical/standard thread combination' or not (e.g. UNC, UNF, etc.), I want to have a master check list matrix, probably with a vhlookup. I'm lazy and don't feel like copying EACH element NaN...is there no way to select a bunch and copy it into the next row/column? I can copy multiple entries and paste a nested into one entry location, but not copy them over into multiple elements. I've seen a couple threads about using functions to make an empty matrix, but I can't quite figure it out...and really I'd probably want to make a filled matrix, and then manually edit some elements.

Does Mathcad Prime 7.0's Combo Box support units with exponents?  I am trying to enter steel properties in and when I type in^4 and in^3 that is exactly how it looks instead of in⁴ or in³.    

Hi, I am trying to find the local minimum of a function using Minimize function in Mathcad 15. I would like to use the Levenberg-Marquardt algorithm. However, I am unable to select this option from the menu, see the image below.  Please let me know if it is poosible with Minimize function.   Many thanks S  

I would like to convert my equations in a MathCad worksheet directly into a higher language (C or C++, or other) to run on a super computer.  Is there a software or second source software that can do this directly?

Hi,   First post here. i am trying to compute the following equation but unsure of what the error message is meaning and how to rectify. I have included the equation from the Eurocode in the screen shot.   Any help is much appreciated. 

I have matrix        A=    1   b            0  1   how can i use mathcad prime 5 to solve it for b?  

Hello everyone, The data points of a 3D surface are supplied in the accompanying worksheet. I'm looking for a slice of the surface at any azimuth angle. Through interpolation, I was able to extract the function that describes the surface. The function slice(phi) was subsequently constructed to slice the surface at any angle phi. Due to missing points on the original data on the rim, the interpolated function shows irrational behavior around the edges (except at zero and half-pi angle). In this example, the rim is a circle of diameter of 15.8.   What are your recommendations for dealing with this issue?   I am grateful for your aid.Best,Payman

@LucMeekes ....With your help from my previous post , I was able create a n excel table based on the timing matrix (both attached, plot the  waveform and then calculated average Power dissipation in a cycle... Can i do the same plot and find average  using range variable(from time vs power matrix), there by i can skip the excel part of it? Can you show me an example? Thank you Jacob

Help please!Prime 6 sheet in attach.

I have the below circuit for which the switch combinations S1,S2,Sx,Sy[0000...1111] gives me 16 combinations of Va voltages. I have 16 equations for the voltage values. From the equations I am trying to derive the Rc1, Rc2, Rc3 , Rc4 and Rbd transfer function. Please refer attached Mathcad sheet. The issue is, it takes forever to calculate the functions. What I could do to get the symbolic equations? EDIT : One thing I am thinking is to remove the node R2--Sy and then i'll have 8 combinations of Va. The Is and Va values are measurable quantities in my case, the switches and R1,R2 is my addition to the circuit with the intention to get individual transfer functions for Rc1..Rc4 and Rbd.

I am trying to find Transfer function for the variables Rc1, Rc2, Rc3 and Rc4 but the tool runs into runtime error . Basically, I need transfer function in terms of Rc1, Rc2,Rc3 and Rc4. EDIT : attached the worksheet. Now, I am getting out of memory as error.  

Relatively green Mathcad Prime 7 user here. I am trying to write a simple iteration program so that I can eventually try to adapt it for my needs. My question is: Why is my program returning 0 and 1 as well as multiplying everything by 1? I just want to see the values from 1..n where's f(n) is my input. I have minimal experience coding so I apologize if the answer is relatively easy or has been in front of my face the entire time. I will attach a file upload as well as a pictures, thanks in advance.

Thank's in advance

@Werner_E Can you show me the whole line that will be deleted from this file because I want to understand how it works.  

I have been working on this since last two days and just completed my work and then suddenly Mathcad crashes and gives me an error that the contents of the file have been corrupted.I tried everything, used the recovery file also but cant recover. I just dont know what to do.I would really appreciate if anyone can help me with this.ThanksP.S. the file is in attachment.

How to use genfit() to solve for nonlinear parameters since it is hard to separate I or V from the equation?

I am a new Mathcad user. I have a function defined for a scalar input. I have an input 4x6 matrix of scalars. I want an output of another 4x6 matrix of scalars, evaluating the function at each entry of the input matrix. That is:   Output(i,j) := function( Input(i,j) )   I quickly found that just entering the 4x6 input matrix into the function as an argument did not work. I ended up using two for loops to generate the matrix (i.e. evaluating the above equation at each i & j value).   My question is this - is there a single line command to input a non-symmetric matrix into a function for a scalar & get the output I want? Any other ideas or resources for how to do this?

Hello,   Mathcad Prime 7 n00b user here. I am trying to solve these two equations (pictured) by iteration without a previous value defined for Q but it is really stumping me. Currently I have Q defined but when it is undefined it really throws everything off and I am stuck. I will attach pictures and a file, feel free to edit as needed. Thanks!    

Hello,   I have a very complex differential equation that can only be solved numerically. Here I use a simple differential equation as a proxy for the sake of clarity. This differential equation contains the parameter a. I would like to determine this parameter a by fitting it with the method of least squares with my data X and Y. I need the numerical solution of the differential equation. From the numerical solution of the differential equation I only need the last value for each row of my data X. This is done by the function xsolvend. This is done by the function xsolvend. Because the differential equation is complex, I use genfit. For this I need the function xsolvend_fit which contains the derivative after the fitting parameter a. The numerical solution of the differential equation with determination of the final value works. See comparison with the analytical solution, which I can easily determine in this simple example. Already with xsolvend_fit there are problems and Mathca

Hello,Is it possible to link two mathcad sheets where one will be opened and the other is closed. The opened one will be set to a certain variable ( allowable stress design), and the closed one is set to a different variable( Strength Design). i need to import certain values from one sheet to another. the reason why i dont want to have one open becuase each sheet is about 25MB and if i have both opened along with other softwares, mathcad 15 will become extremly slow?Thanks!

  Hello,   I have data X and Y. I have set up 4 different models for these data. I would like to evaluate the significance of the models. You can see in the graph that model 2 (green) is the best. I want to achieve this result not by looking, but by using a correlation coefficient. My problem is that none of Mathcad's correlation coefficients give correct results. In Mathcad help, the Pearson correlation coefficient is often used for such purposes. From a workshop on Mathcad or from Wikipedia I know the general measure of determination. This provides plausible results. Only when the deviation is too large, as in model 1, does it deliver values greater than 1. Does anyone have an idea why this is the case? Thank you very much. Best regards Paul