Mathcad

Dear all,   I re-substitute one of Eigen Value back to Equation (Q^2*M+Q*C+K=0) but get Q=0.  How can we calculate Eigen Vector (Q) after we know Eigen Value? Thank you    

Dear all i feel I can not do iteration x(h,i+1)=x(i)+h in Mathcad Primex1=2 N(h)=5/h i(h)=1,...N(h)x(h,i+1)=x(i)+h  (Error this point) Thank you  

I am new to Mathcad and in the process of learning. When defining the units of thermal conductivity k=W/m.K, I keep getting an error for the m.K part. Mathcad says it is an undefined variable even though m (for length) and K(for temperature) are both part of units recognized by Mathcad. I am using prime 6.0 version. Appreciate any help I could get.

Hi,   How can I remove the vertical and horizonal lines from the Mathcad 15 worksheet?   Thanks S

All,   I am trying to set up an odesolve function with a mass spring damper where my spring constant is a piecewise function associated with position. Sort of like a mass is being driven by a force while being acted upon by a damper until it suddenly hits a spring. Any Ideas?

Dear All I could not open an XMCD file with Mathcad ? Please is there any one can help me to open this file ,Please Regards Abdelazeem  

I've created geometric solver which solves geometric constraints (distance,angle,onplane,parralel and so on) applied on points in 3D space. Everything works fine but when I apply constraints on a point (one by one), I want to know when point becomes fully constrained. Of course I can drag point (not in mathcad) to find out this but it's not a math way. So, how to find out that point becomes fully constrained after applying a few constraints?

When I make a Mathcad file with 30 pages or more, it is hard for me to relocate some specific pages. So, is there anyway to create a hyperlink to connect 2 pages in Mathcad Prime 5.0? If not, is there anyway to jump to a specific page faster?

Can anyone help me. My Mathcad file is corrupted and I font know how to fix it. I had a look at the text file but couldn't see any error message. I really appreciate it if someone can fix the issue. Thanks  Bez

Dear all Expert with Mathcad Prime. Please help me. Show how to plotting graph as attached in below. Thank all in advance.

Dear all and prof. Werner_E. & Prof. FredKohlhepp Could you writing this equation with other method to plotting beam or section above? Thank you in advance.      

This is most likely a very stupid question but I do not succeed in this simple program. Attached is a MC 15 file I would like to automate in a small program the process mentioned in the highlighted comment. Would anyone be so kind to help me out as I do not "see" it right now.

Hello ptc community I have tried to find the maximum value of a function evaluated in a defined range, however the max or min function can only be applied to vectors. I would like to know if there is a function or some way that allows me to obtain the maximum value of a function. I try to vectorize the results as attached in the example, however this is limited to functions lacking units as far as I could see. I would appreciate any help This is the function that I have been working on, it is only referential but with this I wanted to imply that I prefer to use units during the calculation. (for more details see the attached sheet)   here I show how it is possible to vectorize a function already evaluated in a defined range but the above is not possible if units are used

Hello! I have a file i worked on all day that all of a sudden just crashed. Now when i try to open the file it reports that "The file type is not supported". If i open a backup from yesterday, the file opens fine. But all my work from a day is gone. Is there any chance you can recover it? I can attach it down below with the log file.

Hello,   I have a question, I am trying to document some of my calculations for future use.   The result I'm getting isn't what I get when I am entering this numbers on my calculator. The answer should be 11.3 m/s or 37/09 ft/s.   What I'm doing wrong?    

I cannot get my Mathcad Prime 6.0 to print to pdf or save to xps. I have a decent size file but I have noticed that with the Mathcad open and not much else my memory usage sits at ~5 GB. Once I try to print to pdf or save to xps the memory just creeps up over seconds/minutes until my 16 GB computer is tapped out.    Does anyone have ideas for work arounds to avoid this? or past experiences with print to pdf / xps issues and solutions that I can try?   Thanks, Michael

Hallo community,   actually i have an optimization problem and want to aks if that is possible in mathcad. For example if i have 8 input variables what i need to optimize and a few boundarys and a long calculation.  Is that possible within mathcad?   What good other program is there available? I have complicated formulas which are moore easy do write within mathcad because of the good mathematic notation and hard in other software like excel. But mathcad can only calculate on 1 cpu   The other problem is that i even dont know initial parameters for my variables to get a correct result so i need to exclude nonsense range of variables. I think i should be able to use a cpu cluster so i should be able to use more than 1 cpu fopr optimization problems   Thankx Stefan

Hello all,   I am trying to recreate a matlab program in mathcad and the only part I'm struggling with is finding a simple replacement for the matlab cumtrapz() function. It is explained in detail here and here.   So what I have are 2 vectors containing x and y plot points for a shear forces graph. I'd like to generate the moment plot points which involves getting the cumulative integral from one plot point to the next. I'm looking for the simplest way to do this.   A method I've found that appears to work but is a little overly complex is the following: a := cspline(x, y) b(x) := interp (a, x, y, c) c := 0,1..150 f(x) := ∫-b(x) dx   (integrate from 0 to x)   and then I can plot f(c) against c   Any help in simplifying is greatly appreciated. Thanks!   * I should note that I am using Prime 4.0 but don't currently have access, so screenshots will work better than files at the moment

I would like to install Mathcad express. I have downloaded the installer, Lauched, and agreed to terms and export controll. Then on the Application Selection window, the path shows, but no applications show available to choose. Also, there is no customize button available. Why doesn't the PTC Mathcad show up in the "choose from the list below"?

I have an issue with the dimensions of density, variable roe, changing after I define it. I defined roe := 2.62x10^-12xkg/m^3.  When I used in a calculation I did not get the result I was expecting, especially with the wrong units. So, I displayed the value of roe right below my definition and the units changed; I got: roe = (2.62x10^-21)x1/kg^2 Where did this come from?   I ended up defining roe in terms of slugs/ft^3 and the equations were correct then on. I entered: roe := (5.084x10^-15)xslug/ft^3 When I then displayed the value of roe in English units I got: roe = (2.62x10^-12)xkg/m^3 just like it should be.  The following equations are solved correctly. Question: what gives?  I attached the actual Mathcad file.

See please Divertissements of Chapters (zip)  Mathcad 15 and Prime sheets (zip)  Table of Contents   Introduction Study 1. Formulas for calculations Or Chekhov's gun Study 2. Swan, Crayfish and Pike Or Scalar and vector in computer calculations  Study 3. The Gold Bug Or Roman-Arab cryptography Study 4. Solvers Or The Mathcad magnificent seven Study 5. Guess the Image Or The Matrix Game  Study 6. How much Or The old problem in a new way  Study 7. Catenary Or The Fifth Element  Study 8. Live kinematic schemes Or Arm of Hella Study 9. Celestial Mechanics Or Kepler's watch  Study 10. Recursion Or A knight's tour  Study 11. Yes-No in Mathcad Or Boole’s origami Study 12. Fuzzy sets Or Optimal Fire Bucket  Study 13. The journey of a circle in a triangle, and of a triangle in a hollow Or a self-directed computer director  Study 14. Interpolation, extrapolation and fitting Or Lies, damned lies and statistics Study 15. Go there, knowing wher

Hello,   I'm developing a custom application that communicates to Mathcad Prime. I would like to ask few questions related to Mathcad Prime Interface as below:   Is there any database used by MC15 or MCP? What are the interfaces / APIs available to integrate with a custom solution? What language these APIs are developed? Are there any C# .Net interfaces available? What would be the cost of SDK? and is it a bulk license or one license per developer? Kindly share your inputs.   Thanks & Regards, Ashish

I repeatedly encounter the following problem: When I use 'solve' to solve an equation or a system of equations, it works fine as long as I don't try to assign the result (see minimal example below and in the attachment), which is quite essential. It just starts to complain with 'This variable is undefined' but does not even mark any single variable.   - swapping the working and not working solve around does not change anything - giving the output variables different names does not help     P.S.: This must have been answered somewhere. I did find some similar posts but none helped me.

I am trying to Rotate a set of co-ordinates about a point using rotation matrix  , over a range of angles , I can do it in excel with ease using the data tables and i can get the values for different angles . Is there a way for using the same DATA tables of excel in MATCAD. Attached the file and i would like to vary the length of "ce" for a range of values and get the dependent values of L(H,I). Thanks in advance