Mathcad

A friendly hello to all,In the attached file from MC14 there are two solution blocks at the end for solving differential equations. So far I had to enter the same initial values in each solution block. Can these initial values be entered only once somewhere before for both solution blocks?Kind regards, Alfred Flasshaar

I am trying to get a speed unit (m/sec) into a combo box (prime 8.0.0.0), but this somehow does not work. I'm now using a work around first defining mps as m/sec then putting mps in the combo box. Same thing for accelerations (m/sec^2) Is prime still this much troubled by unit issues or is it just me having trouble coming from MC15. It appears to me such work arounds should have been implemented out of sight to the user by now. Celebrating 12 yrs of  PRIME (or mostly avoiding it for me to be just fair)  

I am a Mathcad user with a permanent license for Mathcad 15.1 and Mathcad Prime 3.1. On friday 17-2-2023 my model worked perfect in Mathcad 15.1. After running the model, windows updates KB5022497 en KB5022845 for  Windows 11.pro were run. From that moment on the import of files (text, Excel, dBase) were no longer working. The Windows updates therefore have been undone, but that did not solve the problem. Whether this is a Mathcad- or a Windowsproblem is not clear to me. Could anyw\one having faced this problem and resolved it post a message?   RE: post

I have an active license, but when i complete the install, my ptc desktop shows a "created with ptc mathcad express:" watermark..  Can you point me to the full installer or is there something i am missing with my install or my current license?  

to all, A question regarding the Cholesky LDL decomposition. given a matrix A one can have A=LDL* where L* is the transpose of L using the mathcad 15 cholesky(A), how does one code mathcad to get D? L = cholesky(A)   Thanks in advance Josh

New features for consideration:          

Hello,   How would you compare Mathcad with following software?   What would be the advantages of using Mathcad (Prime - because it was chosen to continue with MC Prime further)  compared to the following software: Standard Maple, Maple Flow, Wolfram Mathematica or Matlab? What would be the disadvantages of using Mathcad (Prime) compared to the following software: Standard Maple, Maple Flow, Wolfram Mathematica and Matlab? Why do you prefer Mathcad (Prime) instead of the other software: Standard Maple, Maple Flow, Wolfram Mathematica or Matlab? Or do you use the other software listed above besides Mathcad (Prime)? Why? Is it really better to use Mathcad (Prime) compared to the other software above, at least from the point of view of say the following fields: Engineering/Electrical Engineering, Control Systems, Signal Processing, Calculus, Matrices, Algorithm (convergence, accuracy, precision), working with units, programming? Is it worth messing aro

Hi, can someone help me by converting these old version of file (05 files) so I can open it in Mathcad Prime?  My option to convert the file is also grayed out. thanks!!  

Hello, How would one set limits for the variable in the solve command.  In the example below, I know that k has to be between certain values.Thanks,  

Does the mathcad subscription license (Prime8.0) support version 15? I can run Prime 8.0, but when I run version 15, I get a license error (-2, 15, 8, etc).   

Hallo you all, since a while i cant access Mathcad full version while beeing connected via public wifi. With my home Wifi it works fine.disconnecting VPN doesnt make a difference. Do you have any ideas whats the problem. Since working remote its kinda annoying. Thanks!!

This month’s challenge is on black holes! Create a worksheet that: Calculates the event horizon (Schwarzschild radius), last photon orbit, last stable particle orbit, and temperature if the Sun, Moon, and planets of our solar system were to become black holes. (You can choose whether to include Pluto.) Uses the Chart Component to depict the event horizon and temperature as a function of mass up to the size of UY Scuti, the largest known star in the Milky Way galaxy (which may become a black hole “soon” on a cosmic timescale).   Image courtesy of NASA Goddard Space Flight Center / Jeremy Schnittman used under CC BY-SA 4.0.   Considerations: How do you provide the inputs? Matrix, table, combo box input control, or other? When creating the Chart Component, does it make sense to use a log scale anywhere? The equations can be found here (hint: most are on page 36). Documentation (text blocks, text boxes, and images) for this challenge is critical! The math is actually not that

I am unable to acquire the necessary license to run the PTC Mathcad Express (I want to try the full PTC Mathcad functionality for 30 days). Every time I attempt to activate my PTC Mathcad Prime 8.0.0.0 I run into the following error in the "Acquire License" tab: "You have reached the maximum number of license requests available for your product type."Furthermore, within the PTC Mathcad options tab, I get the following message:"2/15/2023 4:32:00 PM : The license request failed.Requesting MathcadPrime ...C:\ProgramData\PTC\Mathcad Prime\license\MathcadLicense.dat: (-10) Feature has expired."Any help debugging this problem would be much appreciated as I would like to do my free 30 trial error before deciding whether or not to update my account to Mathcad Prime 8.Thank you!

Hi allPlease, see the attchd.file.There is a graph where I would like to represent parameters x and y related to z.I have no idea how to define the x and y axis.Does anybody have an idea how to do that? Thx   

How do I find the name of the variable that has the maximum value in a set of data. For example, if I have x=3, y=5 and z=2. I want to find the variable name for the maximum value. In this case it would be "y".  

When I enter my new liscence key, it always tell me to try later. So I looked at the email and since i'm on the student version, it tells me that I need to send my student id and a proof of scholarity but there is no email mentioned for me to send it. Where do i send it? And is that why I can't activate my liscence key?

Hello,     My question here is: how can I make the x-axis of the frequencies (freq) be the logarithmic axis (Log10), but without using the Logarithmic scaling option from the menu?   Same thing for the Phase plot:       Mathcad Prime 8 file attached. Excel FirstGraphPlot.xlsx file attached. Excel SecondGraphPlot.xlsx file attached.   Thank you.

Hi MastersI.Ton(t,T) is a formula function in every duration of T0 and T0+Ton, T1 and T0+Ton.and Ton is a constant value and T0, T1, T2....in the array series of THow dose the program compare the duration with time variable "t" to plot I.Ton(t,T) through the time? tks     

I have some spreadsheet created for mathcad explorer 8 Now Mathcad explorer 8 still run on Windows 10 but not calculate the results. What I can do to use these spreadsheet ?    

1. For each element of matrix "Em", it is required to match only one closest value from matrix "E_exp_int".Corresponding to that matched element of "E_exp_int" it is required to lookup flow and obstruction values in "flow_int" and "obstruction_int" matrices.The looked up elements of flow_int and obstruction_int will be used for calculating variable "status", as shown below. Right now, there are just flow and obstruction matrices only.2. The summation corresponding to index m starts from 0. For m=0, a constant "lateral_coeff" will be used in place of variable "status". Then, first term of summation needs to be given half weight.  

Hi all, I am putting together a calculation sheet where the input data is entered using the Excel component. The first column is the thickness of my layers, called h. In the "Outputs" section of the Excel component, I define h as having a range between cell A2 and A21 (so maximum number of layers is 20). However, if the user enters less than 20 layers, I wanted to give the option to not have to change the range definition so I was using a filter function to remove all non-defined values of h as follows: h := filterNaN(markNaN(h,match(0,h))) This works great; for example, if I define 9 layers, I get a vector length of 9, even though up to 20 layers can be entered. However, one of the other input variables, called OCR, applies to some layers and doesn't apply to others. For the layers that it doesn't apply to, I enter "NaN" in the cell to show that it is not applicable as below: h (m)OCR0.520.520.520.520.5NaN0.5NaN0.5NaN0.5NaN0.5NaN However, if I use a similar fi

Hi! Can u convert this file, pleasse! I can't convert them in Mathcad Prime option. Thank you!

Hi allPlease, see the attchd.file, mathcad prime 3.1.There is a graph where I would like to have parameters y and z related to x axis scale and parameters y2 and z2 related to x1 axis scale in the same graph. I have absolutely no idea how to define which x coresponding with which y for plots where are a several different x.Does anybody have an idea how to do that?Thx a lotRosta  

Hi MastersHow to reassign the array elements order??tks  

Have been used Mathcad for many years, currently version 15.Are evaluating Prime before an eventuall change from 15.- In Prime I can not find the tool for align expressions and textblocks.In Mathcad 15 it is very easily done with the help of the tools "Align Across" and "Align Down"Please advise