Mathcad

The animation belongs to this thread here http://communities.ptc.com/message/263351#263351   Main goal was to avoid that Mathcad eats up all memory when the animation is made. Solution seems to be to represent the pic as a plain matrix as opposed to a nested vector. See the aforementioned discussion for further details and the Mathcad 15 worksheet itself.   Unfortunately this Flash video here is mediocre in quality compared to the original AVI file which Mathcad created.     Unable to play video. Please try again later.(view in My Videos)

Hello everyone, i hope all are having a great day.I started this discussion because im having a little problem solving a system of 2 ordinary diff eqs.Im not defining a function for t or x because theres not a way to put this in function of w.Also I dont know if i define w with a random numer and t and x with random functions would affect the final result. I just want to solve the differential eqs. I defined r(w) for example for simplicity. The problem im trying to solve is for chemical engineering. Its about solving the mass and heat differnetial eq simultaneously. Heres the document. Thanks for your time

I just got Mathcad roughly a few days ago and I need to run a dB and spectral analysis on a .wav file I recorded. I am brand new to this software and don't know where to start. If anyone can help or lead me in the right direction, that'd be awesome.Erik

See please http://www.sothebys.com/en/auctions/ecatalogue/2014/contemporary-art-evening-sale-n09221/lot.27.html   See please the Mathcad-shett - one killer of memory! http://communities.ptc.com/message/263290   Unable to play video. Please try again later.(view in My Videos)

Hello,I'm using the find function to find 9 variable with 9 equations. Each of the equations equal zero thus mathcad finds zero as an answer. There should be another answer. I know the find fuction will find the closes answer to the guesses but changing the guesses doesn't make much difference. I tried to set that the variable are not equal to zero but that didn't change anything. The system is working, if I set one of the equations equals 1, I get 9 non-zero answers. If anyone has a suggestion to sove the system that would be great.Thanks in advance,Kendall

Hi All,I have a problem with the scriptable drop-down menu object. If I select a value from the list, and then save the model, the set value will be forgotten by Mathcad upon opening again. And the default value (first one) is set again.Can this behavior by any method be changed?Thanks,Zsolt

I am trying to insert a program (the attached HW 2 Corrected) into another program (HW 5 Part A) so that I can pull values from HW 2 and use them in HW 5. How can I do this?

Hello All I am doing a minimization of the torque in mathcad and the solution that i am getting is heavily influenced by the guess values and each time I change the guess value a,b etc even by a small amount,it gives me a different answer. I really am not sure why it is doing that and also how am I going to rectify it.I have enclosed my worksheet . Any help would be greatly appreciated

Hey, I am unable to solve my find block. I've defined my 2 equations, with a total of 2 unknowns, and have initial guesses for both. When I try to solve for the 2 variables, it says that my find function is undefined.Anyway to solve this?Im using mathcad 15. thanksIn the file, its under "Analysis".

There are ... type of equation:Algebraic Rationale TranscendentEtcWhy we say only about algebraic and differential equations in Mathcad -about DAEs for example?

Hi,in MathCad i have defined variable as wllston = 17.32 lbfwhen i read its value in API i am getting this value : "77.0462622041584"is there any way so i will have same value as in MathCad.Set oResult = msheet.GetValue("wllston")output : value "77.0462622041584"required output : 17.32Thanks in advance !!!

Hi,For a function which has the factors as vector, how roots can be found.simple function: f(x)=x^2+c

Hello,I was going to install the Excel add-in to see what advantages I could leverage from excel using mathcad, but there is an issue installing. My question is has anybody else been able to get the add-in to install. I am currently running Office 2010, and am assuming this is the reason for installation failure as I suspect the location of files installed has changed. I would assume excel 2007 and 2010 are fairly compatible.The downloads I'm refering to are at the following link:http://support.ptc.com/support/mathcad_downloads.htm

Hello,I am trying the PTC Mathcad Express 3.0, but just on the beginning I have met with an annoying problem with entering parentheses, for example to write y(x). On the Czech keyboard layout the "(" is located second key right to the letter "P" , the "(" is on the same key, but entered with shift. The problem is, that when I press the "(" key, in case of entering mathematical expression, nothing appears, nor the whole "( )" as written in help . The only way how to enter parenteses is to use Operator/Algebra menu and this is very annoying, because the parenteses are used very often. It is interesting, that in case of entering text in text block the parentheses working without problem, so I suppose there is an error in entering the mathematical expression on the keyboard.Has somebody find a way how to solve this problem/error it withouth changing to different keyboard layout?Regards,Zetka.

Hello,After reviewing the documentation for hypergeometric functions, Mathcad Prime 3.0 does not accept comlex numbers as arguments for this type of functions.I am wondering if anyone has found a workaround this hurdle or is it just simply not possible at all in Mathcad to compute results of hypergeometric functions with complex arguments.Maybe it's time to move on to a more capable software?Thanks in advance for your help.Regards,Josué

Hi, I have Mathcad 13.1 that I used to use with Windows XP. Now my computer has windows 8 and I want to install MC13 onto it. I tried it but it doesn't properly install on Windows 8. Is it possible to install MC13 onto Windows 8? Thanks. Mark.

Hi..The Excel calculation given below in each step needs to check the current and stroke and import the force value from mathcad.The Force thus obtained will give the current for the second step, which along with the corresponding stroke value again the force has to be taken from mathcad.Is it posiible to automate this process using Mathcad by reading the excelsheet?I have attached my worksheets herewith.

I'm taking Jason Hafner's edX course Waves and Optics https://www.edx.org/node/3261#.VF-6xfnF-So .  I've been trying to use Mathcad Prime 3.0 to solve the various problem sets.  The ability to control units automatically is a great advantage although sometimes this makes you think hard about making equations dimensionally correct.  Recently I tried to solve a problem with the symbolic "series" command.  I had mixed success.  Here's the problem.We are taught that any problem  f(x) = mass*d2x/d2t has a hidden form -k*x = mass*d2x/d2t which is Newton's Law for Simple Harmonic Motion (SHM) of a spring.  If f(x) is non-linear, i.e., it has terms like x^2, e^x or sin(x), we can linearize it close to an equilibrium point using the Taylor's series for f(x). For SMH problems the equilibrium point is usually taken at xeq where f(xeq) = 0.To linearize we are interested in only the first two terms of the Taylor's series:Since f(a) should equal zero, and 1! = 1, w

Hijust looked over some old custom functions from Tom Gutman.He sometimes uses substitute in his functions, but I cannot fiugure out how he types it IN the programm.looks something like: if I try to explicitly type subsittute (ersetzen) it gets interpreted as a variable, if I use the symbolic -> subsittute it gets writen besides the funvction-definition.Cannot figure it out for MC 15 and MCP3?What's the trick?Need this to define a gradient function in MCThnkxWerner

I try to chang "vector" But I am seriously having a problem. This is a problem that I feel difficult.I want to get left values, not right.But If I use "vector", I get right value. it make me sad...I want to get advice

I want to stack all 100 columns of a 1000 x 100 matrix to form a vector with 100,000 elements.

I can get total QT if I define v, theta to any number.But I want to get total QT that it include v, theta as "variable"I search for method with my book, but I can't search for it.so I posted this site to get advice. could you help me?

Hi,This could be more of a conceptual question than mathcad probelm...Here in this file, I have a set of equations representing a feed back model. According to my what i am expecting with the graphs.. like the N.s/c.s graph. the N.m/C.m graph should also be constant over time without fluctuating over time.. I am not sure what causes this... can any one help me figuring this out?

Hi,I'm having trouble with units when using exponentiated variables. I'm trying to assign a variable a value (fck) while having another variable depend on the first one (fctm). It works fine if I only multiply the first variable with a constant, but if I also try to exponentiate the first variable my units (MPa) get messed up (see fctmERROR). However if I replace the first variable with the numerical value I assigned to it my units works as they should (see fctmWORKING).Trying to forcibly remove the messed up unit only breaks the whole thing (fctmERROR2).I have attached an image to better understand the problem:Also attached is a file with the error in question.Im using MathCAD Express Prime 3.0 F000 (2013.09.12.003/3.0.0.194) running on Win 8.1 x64

HiI'm trying to make a 3D plot, but gets the error "The function did not evaluate to a pure real value".I don't understand this, since the function seems to work just fine, when I enter values into it.