Mathcad

I am trying to solve a system of equations but I have 3 knowns. When I try to define the knowns, if I use a subscript, I get the error message: "these units are not compatible" or: "the variable is undefined. Check that the label is set correctly."   I've defined variables and knowns with subscripts before and I don't know what I am doing wrong. Thanks for the help.   PS: This is a continuing post from an earlier problem and I keep on running into new and exciting problems 🙂  

Hi,I have used quite a lot of the functions in mathcad, however for the first time I have to output some data into excel from mathcad.I have a graph with two variables (x and y axis)I want to input one of the variables in column A and the other in column B.I have attached the file as well.Any help will be much appreciated!

Hi,   I was hoping someone might be able to assist with converting a .xmcd file to a Mathcad prime mcdx file.   Please find file attached.    Many thanks,   Phil

Dear Specialists,I am a using Mathcad Prime 3.1 .InkIs this version able to transform xmcd to mcd ?I want to confirm attached xmcd file, but I can't do my version.Could you please advise me how to tranform?Best regards,Shinichi

Dear everyone  can mathcad prime can do animation? thank you 

Hi everyone.  I haven't been active on this site for some time, but thought of you (especially @ValeryOchkov) while watching some math puzzles posted to YouTube by Matt Parker (mostly to his second channel, but some on his main channel). Hope you're all doing well. -Mark

Hi    What is CWD setting in mathcad ?

  As in the picture, when I compute X the first time, I didn't put any units(because there is no unit), and it gave me error. I resolve the problem by put its unit as lbf/lbf, which is also unitless, same as previous, but now it worked. Why does this occur? Also, if I would like to change the result unit in the matrix, is there a way to do it? Or I can only do it explicitly.

KVL states that the same sense sum of voltages added around a closed loop is zero; at all times by inference. I think that this also implies the same zero summation for the rates of change. Am I wrong?   I have been a working engineer for 60+ years and I know that I might be forgetful! While re-writing a patent application it occurred to me that this was a valid understanding.   Any comments would be helpful.     John Archer.

Hello! Can we use the infix notation for a function name in Prime? For Example, I want to create a function for parallel resistors    and use it for the circuit element by typing R1 || R2  for example. It was possible in Mathcad 15. Attached the sample from Mathcad 15.

Hi all, If there is some complex equation involving imaginary numbers and in my case I need to solve for f, i.e frequency but I am receiving an error if the function solve is called. Please refer the below attached file for details and kindly request anybody to help me out in solving this.

Hey all,I need some urgent help.I was working on my state exam project, opened the file this morning and edited something on it and saved. While i was saving, my PC suffered a blue death. I turned on my laptop back on a few minutes later to continue working,  and am now getting an error saying :   The file is not supported, the log file is : .... etc.. Is there a way to recover my damaged file from death? I have lots of important work on the document and I cannot afford to start over! Unfortunately i did not have a backup file ... Thank you , Balazs!     

Hi i know this is really basic ,im starting to learn how to use Mathcad 15. Im trying to replicate a pdf document that used Mathcad , but i cant plot the graph of the signal i pointed , its the Fourier transform of an entry signal.   What should i put on Y axis and X axis?  , im pretty sure the document used only what is on this  Mathcad file. "help_mathcad15" is the Mathcad file and "Graph" is an image of what im supposed to get.   please help a newb :s

I'm frustrated   trying to simplify   results from   symbolic   engine (new or legacy). i have tried multiple symbolic   options.   For some reason, if I go in and   manually do an   equate, stuff sort of works? Prime 6 file.

See please the attach - Prime 6. Why in case 1 we have rank = 4 but in case 2 we have rank = 5?  

In the use of hexadecimal numbering, Mathcad gives an error when I use the hexadecimal number C, which is normally a unit of measurement and also for c which is the speed of light, the same for F. What should I do to avoid falling into error ?

Hello, I'm starting my adventure with Mathcad. I have two the same files written in Mathcad 14 and Mathcad Prime 3.0.But it only works well in Mathcad 14 and I don't understand why.  In Prime 3.0 when i trying to plot the graph i have: "Plotting failed. Replace complex values and NaNs by real numbers." I noticed that there are many people with similar problems. I have read all topics related to it and I still don't know what is wrong with my file. Can you help me?  

How can we get the Excel Component to accept a dependent variable as a valid Input Expression?   Please see the attached file.   Thanks, Ken Williams asaellc@msn.com

Hello,   I have a problem : I want to analyse the thermal heat evolution of a wall with fluid heat variation. Can you help me ?   Thank you.   Michel

I'm seminew to Mathcad, and I know my question is fairly basic, however, I was not able to find the answer either through google nor through clicking around in the PTC online manual.   This is my first attempt at making vectorized calculations, however, I keep failing doing them. The program simply shuts me down by giving me the error message that I must use a matrix or a scalar.   The equation I try to do is fairly straightforward:   1) Define a vector with a range x:=1..5 2) Implement an equation H*sin(x/L*pi) everything works swell, until I try to save that value, simply by putting something in front of it. Let's say: y:=H*sin(x/L*pi) At this point it suddenly decides to tell me no, it must be a scalar, I'm not allowed to do this.   What's the reason? How do I get around it? Second question: Is it possible to have a simple index system such as x(1), rather than x_1? I haven't figured the indexing system at all, btw. Everytime I try to call any of the vector value

Hi, does fact2 (n) not work? or, isn't correct, the use I make of it?

Hi, I'd like to split the numeric solution of my equation to show the influence of the two factors without having the define new variables. I need to keep it as simple has possible. See p.7  For exemple ;  uc = 3 + 0.5   (where 3 is the section a and 0.5 the section b) uc = 3.5    Thank you ! Camille  

Any Science and Engineering student, and Professional.   Basic efficiency and interconnections of a combined cycle power plant provided in this PDF file. This field continues to grow.   Job opportunities are many for the graduating engineer and other discipline graduates. This file may generate your interest, to take up power plant studies be it solar, wind, combined power plant, or other power plants. Much use of software there is to take up calculations in Prime-Mathcad. Including data analysis and interface. A brief introduction to a major German engineering combined cycle power plant project completion in Egypt is provided.    Any errors and omissions apologies in advance.       Regards, Karl.    

Hello All,     I am struggling to find the proper code for solving a system of non linear equations, using Mathcad 15.     The equation are given in the screenshot below. The problem is related to thermodynamics.       I followed a template with Find, however it just don't get me anywhere.     What needs to be done to get the results ? Can someone explain the issue (for the layman).      Thanks for the support,      keep safe,   System of equations      Result sough PA (Pas in code) and PS (Ps in code).      Once PA and PS are available; related parameters "aS", "aA" (aA and aS in code) and x calculations are straightforward.   Code (Mathcad file attached)