Mathcad

Hey guys. I have units problems when i use protencies and square roots. Can someone explain how i can solve this problem? for instance in the attached file i should have kN instead i get no units.

Can someone (or several) offer some comments about advantages of one vs. the other? I realize that could be a long answer and I am just looking for some general guidance. I have been a longtime MathCad user (though not necessarily a particularly adept one). Recently I decided to learn Matlab and started doing this by rewriting some Matlab programs in MathCad (although the reverse might seem more sensible). Although MathCad has obvious advantages for combining text and calculations in a more or less free form way, my impression is that MatLab offers many programming advantages. For example, fzero seems to work more robustly than root, MathCad seems to have no function equivalent to fminsearch or fminbnd, it treats NaN differently (MathCad returns 0).Attached is a MathCad worksheet and the equivalent (?) Matlab files.

In addition to last mail from Thursday there is attached a file with two versions of the program block mentioned.The program block Largefile.mcdx is the long version, which Prime 3.1 refuces to calculate (to big).The second program block Largefile_red.mcdx has 18 comment lines less than Largefile.mcdx and workes propperly.Input data to perform the calculation are included.Mathcad 14 can handle the larger program without problems.Günther Polz

I am using a program of 120 lines length, that can be handled in Mathcad 14 without problems.Prime 3.1 however indicates "This expression can not be calculated because ist is to large".Is there a general limitation in Prime 3.1 or is the problem created due to the transfer form MC14 ?Günther Polz 

I've recently reloaded MathCad 14 onto my re-imaged Windows 7 computer on which it used to operate but the program will not start up. The icon on the task bar 'glows' and then dissappears without any request to find the licence. Has anyone come across this before and knows the answer?Thanks in advanceRichard

Hello AllRecently I have been working on my mathcad file which  include formulas and some pictures and it worked fine for a while. I was able to close it every single day  and open the file next day. But today I cannot open the file. The application I have on my system is PTC mathcad prime 3 and I havnot updated or change it since I installed it on my machine. I'm able to open other mathcad files but not this file. The log file says:Exception data:File being opened: C:\.....\Desktop\MyCalculation.mcdxFileFormatException when processing fileSystem.IO.FileFormatException: File contains corrupted data.   at MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.FindPosition(Stream archiveStream)   at MS.Internal.IO.Zip.ZipIOBlockManager.LoadEndOfCentralDirectoryBlock()   at MS.Internal.IO.Zip.ZipArchive.OpenOnStream(Stream stream, FileMode mode, FileAccess access, Boolean streaming)   at System.IO.Packaging.ZipPackage..ctor(Stream s, FileMode

I'm solving the natural frequency of a structure. Pleas help. See attached file. How to do this in Mathcad Prime 3.0?

Hi all,please see attached.I am attempting to derive what I thought would be a simple enough equation to describe the maxima and/or minima of a "filter" function magnitude response.  The example is a simplified version of my original problem and although in this case the answer is very obvious (w = 1), my original problem did not have so obvious an answer,  And also, although I can easily plot the response, I would like to establish the design equations to allow me to work backwards from a requirement to a solution in equation form.In the worksheet, the symbolic solution seems to fail.  I specify the function H(s) and then substitute s = 1i.w to obtain continuous frequency response.  I suspect the problem is complicated by the use of the |magnitude| function which might make symbolic solution difficult - that's my guess at why this doesn't seem to work.  If there is a better way then please let me know!  I have been staring at this on and off for a few day

Hi All!On two PCs I installed mathcad 15 (on one OS Win 7, on the other OS Win 10) and on another mathcad 14 (OS win xp sp3). Among the one and the others I find differences in the fonts. For example in one's French MT script, while in the other there isn't. So it is obvious that importing programs from one to another there are changes. How do I avoid this?Thank you very muchF. M.

Hi everybody,I am trying to build a function that should give back two vectors (and that is not the problem), only those vectors have different units.The only way I can imagine is to adimensionalize the vectors, using UnitsOf (or SIUnitsOf) and the assemble them in the array of vectors that I want to get back.Somehow this it is cumbersome and error prone, since outside the function I will have to multiply back the variables by their units.Thanks a lotBest regardsClaudio

Hello!What's wrong with the last Fourier-Analysis of a sinus Function?Thank you for your Help.Volker

hi,I'm looking for a way to solve a two equations systems with x combinations of inputs values what should give the same number of solutions. Any help will be much appreciated

Is it a bug? The vector V must have an unit m!

Electric circuit class

Electric circuit class

Good Evening Mathcad Community,Would anybody please help me with the attached file. My goal is to do interpolation given a period T.a =0.5*sec, based on site_class and the header Sa(0.2*s)  for Fa(site_class, Sa(Ta)) and same for Fv(site_clas,Sa(Ta)), I'm having problem as to how to program this in Mathcad. I will appreciate this if anyone can help.Regards,Boyetr

Hi all,please refer to attached files (Prime and Mathcad versions).I have a 3 functions:1) Ha(s,...) - a filter function (not really important what it is)2) M(s,...) - magnitude of Ha(s)3) D(s,...) - derivative of M(s)When I plot M(s) and D(s) with s replaced with iw, I would expect to see the derivative function have a value of 0 when the magnitude is at turning points but this is not the case.  Can you spot my error?Thanks,D.

HelloWe are trying to integrate a function which contains a vector for wave frequency (omega) with respect to length (y). We need help programming the integral so that it gives a value of each value of omega. Currently it either gives us a single value, or says the solution does not converge.Any help would be greatly appreciated!Kind regards,James and Daniel

В этюде рассмотрено решение в среде Mathcad задачи о цепной линии на основе анализа потен циальной энергии механической системы. Предложены две лабораторные работы на стыке физики, математики (геометрии) и информатики.Рис. 21.1. Решение задачи о провисающих на нити грузикахРис. 21.1а. Решение в среде Mathcad 15 (ошибочное)Рис. 21.1b. Решение в среде Mathcad Prime 3.1 (верное)Рис. 21.2. Проверка модели нити с грузиками: наложение параболы и цепной линии на грузикиРис. 21.3. Арка – перевернутая цепьРис. 21.4 Экспериментальное определение центра тяжести плоской фигурыЦентр масс — ВикипедияЛабораторная работа на стыке физики и информатики.Найти координаты трех узловых точек, к которым подвешены гирьки!   

В разработке для нового издания книги

I just purchased Mathcad Prime 3.1. I only want to install Mathcad 15.0. I do not want Prime on my computer. I did download the file for Mathcad 15. Can this be done? Are there written instructions to do this? Instructions to do what I want are not with the delivered software or on the website (where I searched).

At the bottom of the attached sheet I am trying to solve for lengths YD and ZD that will work for all three equations simultaneously. It is telling me ZD is undefined. Is this because there is no solution or that I am doing something incorrectly with the solve block and the matrix guess values? Any help is appreciated. Thanks. The file is MathCAD 15.

I am using the find function to return solutions for a system of three equations. I understand that the solutions returned can be different based on guess values and tolernace of the solver. currently I cannot get the solver to return the correct solution. I am checking the solutions by using the outputs to recalculate one of the given equations.Is the find function not the correct way to solve for these variables? Should I be using arrays, or Max/Min of function. I am very new to Mathcad, and I am trying to use it to eventually input a matrix of ID, and Delta to return wall thickness (Ha) for various sizes.Thank You, and sorry for being a Noob.

Hello everyone.I'm trying to calculate the diagrams of bending moment and shear forces of a beam, I performed two analyzes, one starting from the left side and the second from the right side, but I could not get the same results. Hope someone can help me.Thanks in advance.