Mathcad

Hi all, I want to solve the following 2 equations for all v values: Since there are 2 unkowns (Fo(v) and Fc(v)) and two equations, I want to obtain the Fo(v) and Fc(v) formulae since that should be possible. I tried to find this formulae using the 'Find' function in mathcad prime:However, that didn't work. Attached you can find the worksheet. Really appreciate your help in advance!

I just purchased and licensed Mathcad Prime 7.0.0 and want to check that it correctly converts the XCMD files we create with Mathcad 15.  The PTC 'Migration Guide' says: "To start the XMCD, MCD Converter ... click 'XMCD, MCD Converter".  When I do this, it says to install XMCD, MCD Converter  using 'setup'.  It also says "Alternatively, you can start it from the Start menu". But, I can't find either .'setup' or the Start menu.  Please advise.  

Hi community , Once again I call on you .my problem:I have a mechanism with a non-linear movementin input, I have a linear displacement, and in output I have an angular displacementthis displacement follows a behavior curve I want to drive the input with a motor, so here is my problem.I want to find a max speed value of motor to reach a given angular position. But also that time is linear that is to say, if I want to go from 0 degrees to 60 degrees (for example) what will be my lowest linear displacement time (constant speed value at output), and what will be my motor control curve the solution I found is cut the curve with linear parts,but I don't really like it because it's DIYI don't see the way to get there, maybe with the derivative If someone has an idea   

Hi, I'm trying to build a program so that when I choose a variable to present a set of calculations but when I choose another variable to see in the mathcad spreadsheet another set of calculations. Do you know if this can be done?I was thinking the a,b & c to be different mathcad sheets. Please see attached thanks,Eleni

can you convert now mathcad format xmcd into mcdx, please

I hope I have solved this old interesting problem - One catenary problemSee please pictures and attach (15 and Prime).But at G=0 and x.0=1 m I have not one chain - is it an error of Math model or of a numerical method of 9 equations solution?At x.0=40 m and others not at two fix points all is OKWerner! Where are you?

Greetings, Here is something I enjoyed working on. I couldn't find the answer online, so I had to figure it out myself. The challenge was to divide a square into 7 equal parts. Each part had to be as compact as possible (minimum perimeter to area ratio), so I knew that the trivial solution of dividing it into 7 long, thin strips would not work. After drawing several iterations, I came up with this model. A hexagon is centered in the square, rotated at 45 degrees so that two of its vertices align with the diagonal.  Each shape has an area of 7, in this 7 x 7 square.  If this was a tile fastened to a surface, then the fasteners would be placed at the centroids (stars) to prevent uplift in the most efficient way, supposing that they want to use 7 fasteners and not any other number. Fastener patterns with other numbers are easier to figure out. The next-hardest one was with 5 fasteners, but that's just a simple square in the middle instead of a hexagon.  

Hi everyoneI get an error message trying to use polyroots: this value must be a scalar. It seems to me, that the exact same error is also in the Quicksheet (see image).Any hint would be appreciated. Thanks a lotRegards, Claudio 

Hi everyone,I have an equation that I would like to let Mathcad simplify for me.  It looks like this:ok 🙂 I know I could simplify it myself, but please consider this an example! If I select the left side and then Symbolics > Simplify I obtain the highly unsatisfying result:what I would like is that pi remains expressed as pi! I have tried, remembering another thread, the "symbolic undefine" pi:=pi (above the equation) but apparently it does not work! Am I asking Mathcad 15 too much?   thanks for any suggestion! Best regards, Claudio PS: no, I do not use Prime 😉PS2: the equation is derived with some manipulation from ASME Boiler and Pressure Vessel Code, Section III, and is related to the allowable stress in a pipe product, under known inner pressure and external moments, at design condition.  

Dear All Please help for calculating  Transformation of the nodal coordinates of the spaceframe element, I stuck here both theory and Mathcad Prime. I attached file of Mathcad prime sheet and lesson and example. Best regardsSPRStructur  

Can someone help me with my program? I think I am lost in doing a program in Gauss-Seidel Method of Iteration. Thank you in Advance.

Hi, I need to solve this equation. I tried the solve function to solve it, but it does not work. I managed to solve it with wolfram,  please see the pictures below. Is there a way I can solve this?  

As per this thread , same issue. Hello Luc,   Many thanks for developing the LODEsolve function.   In the explanation is stated: " You cannot specify an initial condition for a value of the independent parameter other than 0. See examples on how to deal with that situation".   I have a curved beam with three boundary conditions at each end of the beam (theta = 0 and theta = phi). The beam is described by three second order differential equations. In can't find an example'that deals with this situation. Is it possible to have multiple boundary conditions at different independent parameters? If yes, can you explain how to handle this situation?   Kind regards,   Ton    

I have converted numerous MathCAD 15 programs over to Prime. In doing so I am having issues with the 'Include' look-up not reading/working properly. About half the time the source/path works just fine, but on the others I get a warning - "PTC MathCAD is using the CWD, Approximate Equality, Strict Singularity Check of the current worksheet, not the CWD, Approximate Equality, Strict Singularity Check settings from the 'Source Worksheet'" It also tells me there are calculation errors in the Source Worksheet when there are none. Please advise

is there any way to recover a file in mathcad prime 6.0?

Hello, long time ago here I had read in view of the subject some good puzzles. Is there anything news known about Bellman´s "Lost in Forest"? Also I am interested in hints to use Mathcad concerning this problem. Regards, Alfred Flaßhaar

Please see the attached file. I need a simple and elegant solution for finding the max value from part of a single column matrix. Thanks 

Hello everyone, I need help please to derive the following function: This function shows different curves (0,5 Layer ... 10 Layer). The X- and Y- axis are not linear. I divided both axis into 5 sections. For each curve I have take some data points for each section. I am seeking this final graph:   The datapoints for the different curves are attached. How can I recreate these datapoints as a function, like in the graph shown above? For each section I have to interpolate with spline functions?Then I do need a "if... if else ... else" command to check which section is active? Attention, the Sheet is Mathcad Prime 6 Kind regards

Hello! I defined a function depending on one variable. Then I used the range operator for the value which my function depends on. I want to call out the max value of the function based on the range variables. The "max" command doesn't work. I think something is wrong with the equation, since the function can't be evaluated when I type the angle in parenthesis.Please, take a look ath the attached sheet. Sergey

For reasons that I need not go into, I decided I needed to compare the results of the different ode solvers in MathCad. In case anyone is interested, the results are in the attached worksheet. (I am using MC 14 but saved it as MC 11 for Luc). I also played around a bit with the tolerance and number of points, but that is not shown. If someone who knows more about the numerics of the solvers than I do wants to comment on discrepancies and relative accuracy, I would be interested. 

The number I am calculating is in psi and I  want to round up to the nearest 50 psi, how do I accomplish this in mathcad prime 7.0?

I am looking for a Mathcad worksheet to evaluate stresses in a rotating shaft with eccentric bore subjected to bending and torsion.  Any insights would be greatly appreciated.

Hello,  i am not able to extract my calculated matrix from mathcad prime 7 to excel. I was able to hand over parameters from excel to mathcad and now i want to retrieve the solution.  Dim matrix As IMathcadPrimeOutputMatrixResultSet matrix = WS.OutputGetMatrixValue("test") From there I would extract all the elements one by one.I also changed the outputalias from "out" to "test" but I only receive the ErrorCode 7 "Matrix result is invalide".Can somebody give me a general example how I can retrieve my results into Excel by the api.

I am using Mathcad Prime Release 5.0I have data where the first column is angle theta that makes ~5 revolutions (0 to 360 degrees) and a second column that corresponds to a 'y' value. I would like to graph the data from 0 to 5*360 degrees (0 to 1800 degrees on the 'x' axis). Is there a function that will allow the theta data to get adjusted? MATLAB has a function called "unwrap" that would be similar ("unwraps the radian phase angles in a vector"). Note: The angle theta is captured experimental data with some variation in the rate (i.e. there is a new data point ~every 2 to 3 degrees).

Hello, I am tasked with updating our programs from MathCAD 15 to Prime 7.0. The below was a Given-Find statement in 15 and has worked for many years just fine. Now Prime 7.0 has changed to SolveBlock and is flagging R' in the constant as "R' has multiple definitions, you must specify a label to select the definition that you want". Note the 'guess values' were added to the solve block in hopes that would solve the issue, it didn't work, since the new block did not have a guess value upon conversion.