Mathcad

Is there a way to write an equation with an unknown variable? The solution could then be displayed as a product of the variable, and then use another formula to cancel out the unknown variable. In the attached screenshot, the n at the beginning of the first equation is unknown. Therefore the solution of s(eff)/n = 140 mm can be rearranged to s(eff) = 140*n mm. This can be then be cancelled out in the second equation to solve for K. Note - In the screenshot (which is from a design guide), the guide confusingly uses n to define three different variables. In my workbook they are defined in order as n, n(1) and n(2), with n on the LHS of the equation being the unknown.

Hi to all How can I get results in fraction format in Mathcad Prime?   Tanks in advance.

When trying to license Mathcad Prime 7.0. I select "Configure product to use existing license" , select "Source List", input the license information, then receive the message "The following products have been licensed. PTC Mathcad Prime 7.0. However when I exit this window the software is still unlicensed. Any help would be appreciated. Thank you

Hi, Everyone.From the following:   How to find the sum of riciprocal, the above ? Thanks in advance for your time and help.Best Regards.Loi.

So, I'm using Mathcad express prime 8, I've been trying it out in a trial, liking it so far, I've come to run into some issues: The first one is that despite having the decimal precision set to exactly 3, these numbers are being displayed as the full precision of the solver, and I have no idea why: No matter what I've tried, Nothing seems to fix it. Every other solution is displaying properly. The second issue I'm having are with these units. I wanted to display mΩ where appropriate, but I can't seem to figure out how to properly add units. The last issue is of this temperature issue. I'm trying to do a temperature analysis on a mosfet but the temperature units is giving me issues. I've tried to look for solutions online, but nothing seems to have worked.I'll be including the sheet if needed. Thanks!

So I'm working with a trial account while practicing with this software for a new job. I've tried to set up a simple algebraic equation, and set the solution to that equation to a variable, in which you can see here:I believe that I set the equation up correctly, however I'm getting this error telling me that R1 is not set up as a variable, despite me defining it with the solve above. What did I do wrong?

I have an issue plotting in Mathcad 15.I am trying to plot a 3D surface, and I received a message that I have never seen before:"Specified cast is not valid."I do not know what that means and do not see the problem.I could calculate the matrix that gets all the values for the surface calculation, but at the moment of plotting it, I receive that message. Thank you in advance, Rogelio

Hello,"sqrt(x) confrac, fraction" does not work symbolically. Every other functions like sin(x) etc. are working well. What is to do in MC14, to get "sqrt(x) confrac, fraction,n" as a new structured function?Regards, Alfred Flaßhaar 

Has anyone got a technique for monitoring the progress of a programme? If you are running a long iterative programme involving many loops (OK Prime is not the best for this I know), but still, it would be great if it were possible to trigger any kind of output to indicate progress. Thanks!  

Hi All, I'm trying to calculate the properties of a weld. As part of this i need to integrate to the shape area to find area, second moment of area, etc. One of the piece wise function's gives an error once i go over a certain number on the depth.  The function works fine when calculating properties about the x axis but not the Yaxis. Please find the problematic function attached. Any idea's how to fix this?

Making one cone with cap out of a role paper of 12 cm in width. Cone has θ in center angle. Cap and cone have largest areas and each with one piece. Find the minimum length, l(θ), of role paper required. If θ=90deg, then l=15 cm is the answer.  

Hi,a very simple problem:I want to flip a vector, that means reverse the sequence of its elements for example (1,2,3)  -->  (3,2,1). I tried several methods, none works really.The problem is, the result vector seems to be ok, but if I use it in other expressions together with the vectorize operator MathCad says always this value has to be a vector.I am using Prime 3.0. Thanks

After conversion of a Mathcad 15 worksheet, the plot was missing plot title, axes labels, and gridlines (see the attachment). Is there any way to obtain on Prime an "engineering looking plot" as in the original Mathcad plot instead of the converted "high school" plot stripped of the original features.  I would be grateful for any pointers.  

Trying to plot some protection relay characteristics. Please see attached failure Could be box quad or even boxes with bits cut out.  

Hello,I'd like to combine the load array with deflection array using augment. I am getting an error. It is MathCAD 15.Thank you for you help,Sam

Hello! I am trying to open Mathcad trial for my work use. It is giving error: You have reached the maximum number of license requests available for your product type. Can you help me with this issue?

I recently installed Mathcad 8.0 on my computer and had around 14 days left in the full trial. Yesterday my company changed my computer for a new one and I wanted to reinstall Mathcad 8.0 but now I can't. The install wizard is stating that I have reached the maximum number of licence request for this product.I am wondering if it is possible to transfer the remaining trial time on my new install? Or at least have the free version, which I normally use anway.thank you,

I am unable to access my work file. Before I attempted to open the file it had a size of roughly 1700 KB however after I attempted to open the file it showed me an error saying that the file type is not supported. After this I have noticed that the file size now says 0 KB. The file I am working on is a PTC Mathcad Worksheet (.mcdx), I have opened other files of the same type and it works fine.The log file from the error says this;System.FormatException: Incorrect file format, file should be from PTC Mathcad PrimeCould you please help me recover the file if possible.

Hi. I am trying to set ranges of variables in a plot in Mathcad prime v.7.0. But it is really difficult for me. Can you give me some advice? Thank you so much.   

Can somebody help me on how to implement the frequency response calculation and graphic plot of Fourier Transform and Laplace Transform in our Mathcad tool ?looking for sample file for example with explanation! Frank

Does anyone know where I could get copies of the PTC MATHCAD 15 worksheets (libraries / Roark's etc)Im happy to pay etc but the PTC website says they no longer do these.Thanks all

we have purchased the below subscriptions in 2019 and it seems that not renewed , please advise how we can renew these licenses:Order Date: 24 May 2019Product Name Qty Ordered AmountPTC Mathcad Prime 5.0 Subscription with Auto-Renewal Product Code:   

I need key for education

I´am going to use mathcad trial 30days version to school.

I'm trying to solve the problem of a chain with a load. Why is there no vertical balance of power? See pls Matcad 6 and 15 in attach. See the word Why??? in sheets.