Mathcad

This study describes the methods of calculation of grids – hydraulic and electric. Emphasis on the mathematical basis of solving such problems. Described methods of improving the efficiency of power supply due to the simultaneous production of heat, electricity and cold. Fig. 17.1 Small boilers on the balcony of an apartment building to heat individual apartmentsFig. 17.1a A centralized system heating and cooling newFig. 17.1b A centralized system heating newFig. 17.2 Calculation of fuel economy on a CHP gas turbine compared to separate power generation (http://twt.mpei.ac.ru/MCS/Worksheets/PTU/Vol-13.xmcd)Fig. 17.3 Determination of equivalent fuel economy for district heating with the turbine type T (district heating) compared to separated production of the same amount of electricity and heat (http://twtmas.mpei.ac.ru/mas/Worksheets/ES/Vol-8.mcd)  Fig. 17.4 Search in GoogleFig. 17.5 Interactive computation of NaCl water solution density (http://twt.mpei.ac.ru/MCS/Worksheets/wate

I created a set of equations that calculates the positions of the two masses with a couple of springs: one to the ground and another between them.  The result looks reasonable as it shows below:Now I am actually performing a tolerance analysis and there are 18 different conditions in a 9x2 matrix.  I vectorized all statements and got as far as it shows below:Rightfully so, each element in the vector has 9x2 matrix nested.  How do I access a particular vector corresponding to a condition?  For example, how do I plot one vector or all vectors?

Hi, everyone,For a vibration SDOF system, when I defined the units for variables like spring stiffness, mass, damper constant...Mathcad tells the plot fails, but when I delete the units, it succeeds.Please see the attachment for both cases.Looking forward to your help.Thank youShawn

Hello everyone!I'm not an experienced user of either Mathcad or this forum, so I apologize if this question is in the wrong place.Sometimes it's needed to calculate the worksheet with attention to certain breakpoints - for example, some values may need manual adjustments.Is it possible to make Mathcad stop calculation upon reaching such breakpoints and give user some kind of prompt?In other words, do not return the final result until all attention points are attended.I hope I was able to explain this clearly!

I want to integrate the following expression in mathcad. the answer should be the following if p(r)=po=constantBut when i try to solve this expression in mathcad i get this:It should give 64 instead of 24. What am i doing wrong.?

I am trying to make changes to matrices with a VBScript Scripted Object. I can get the matrix with worksheet.getValue("Matrix"), but changes I make to that with Matrix.SetElement do not persist outside the script. It seems like the matrix returned by worksheet.getValue is a new object rather than a reference to the one in the worksheet, is that correct? If so is there any way to modify the original matrix from within the VBScript?Thanks,Evan

Does mathcad calculate all polynomials with numerical math or do they have an exact result. Thank you for answering.?

Hi,I am trying to get a solution in mathcad in which we provide a specific value (say 0) initially followed by set of equations and finally giving result.But if the result obtained is <> zero, program will automatically change the initial value until we get the final result (by trial and error) as or nearly zero.this is one example.Please help me solve this using Mathcad.Thanks.

I have a mass-spring system.  I am trying to back-solve four springs (provided in the attached file).There are four masses at which summation of forces are performed and A matrices are obtained.  The attached file shows them in the (Lamda*I - A) format. These springs and masses are configured in four different ways and their first mode natural frequencies are known. Therefore, in my mind, I should be able to use Given/Find in order to find the unknown springs with four equations while setting the determinants of the four matrices to zero. The solver doesn't converge.What is the problem here?  Can this be done?  If not, how else?Your help will be greatly appreciated.Thanks,Eric

Hello folks,this is about a basic issue hence no example sheet.For a lengthy calculation I'd like to read in parameters from excel. As this excel sheet is lenghty as well I want to check first whether the parameters in the Excel sheet match the parameters in my MatchCad sheet (naming and order of parameters). I'm thinking along the lines of making a one-to-one comparison of variable names (not the variable values!) in order to verify a match.Does anybody has an idea how to conduct such a comparison?Thanks in advance for any ideaRaiko

Hi, friends.Is there a way to solve the symbolic solution for a vibration system in mathcad?Such as f(t)=0, and the solution should be in the form of Asin(wt+a)+Bcos(wt+a)Thank you in advance!Looking forward to your help!Shawn

Video Link : 6369

The animation is hereThree frames:

Can you create an animation of this door in the tram?CloseOpenThe start in attach

I am embedding some VB in a Scripted Object within a MathCad worksheet. I am trying to get the Worksheet object so I can get/manipulate some values in the sheet, but when I call ActiveWorksheet (or Worksheets for that matter) on the Application object, nothing is returned.I am inexperienced with VB so forgive anything weird I am doing, but feel free to point it out. Here is what I have basically. I get an error object worksheet is required on the last line of the Sub.Sub getValueEvent_Exec(Inputs,Outputs)  Dim objMC  Dim value  Dim worksheet     Set objMC = CreateObject("MathCad.Application")  Set worksheet =objMC.ActiveWorksheet  Set value = worksheet.getValue("value")End SubThanks,Evan

As suggested by the title, I'm attempting to fit a piecewise-defined curve to a set of data points.  This is also the first time I have used Mathcad, so it is exceedingly likely I'm missing something obvious.  My worksheet is attached to this post.I'm attempting to follow the example at http://www.phys.uconn.edu/~hamilton/phys258/P/genfit.pdf, but when I call the genfit routine, I get the error "This value must be a function".So, question number 1: what is this error message trying to tell me, and how can I resolve it?While I have your attention, I also have question number 2.  The function is a horrible mess because I'm trying to combine data points with continuity restrictions.  I don't know how to specify symbolic relations between fitting parameters (e.g. forcing the second derivative to be continuous at x = 60 yields "e = b + 24").  So I've solved the continuity restrictions by hand and substituted them back in.  Is there a way to get Mathcad to recog

I often see in a bus, tram, metro people with scooters. Here one has a problem - dirty wheels. But you can make sliding wings (fenders) of wheels, which will close at the wheel folding scooter. See. pls the animation.I created the animation in Mathcad and ask someone to do in Creo! Video Link : 6364

The focus of this study is to discover which factors affect the gas mileage of a vehicle by selecting and adjusting 4 quantitative factors.For the study we will use 3 different approaches.1.  A non-statistical approach for determining which factors and 2-way interactions should go into the prediction equation.2.  A statistical approach called ANOVA (ANalysis Of Variances) to assist making the decision in 1)3.  Using Regression for the prediction

Not sure if this is a glitch as such, however, when I have switched off show border for region, it still shows up in print preview and when printing.Has anyone else experienced this?Thanks

Hi!I can't find the reason why mathcad leaves the unit in the last row "y=5.5x10^7".

Here is the Mathcad 11 sheet that solves nth order differential equations with constant coefficients, referenced in the document thread with similar name here: A Classical Math Problem from a Classical Text (Differential Equation).Note that this, as it is, is NOT usable for:- Systems of differential equations,- Differential equations where the coefficients of the derivatives are not constants (when they depend on t).But in both cases, similar techniques can be used to solve specific systems.Luc

I am a new user of "PTC Creo Elements/Direct drafting (x64 edition) Release 19.0" Wen i am looking around on this website i see all kind of info over things that I don't need.For example "3D modeling, Mathcad, model manager, job server " etc etc.It's too much information for me. Is there any way so that I can see only info for the version i am using ?Greetz, Eddy

A sequence Ln is such that L1 = 0.2, L2 = 0.1 andLn = 2Ln-1 - 1.5Ln-2      ( n >= 3 )Use Mathcad to determine the value of L43, giving your answer to 2 decimal places.Need help to input this into Mathcad as i am new to this software... Still trying to figure it out...

I have a long equation that I want to print it on A4 sheet. I work in mathcad prime 3.1

Suppose f(x) is the following function, defined when x>0.f(x)=e^x - 3x - x^2Use Mathcad to find the x-coordinate, to 2 decimal places, of the critical point f(x).Question: How to input this function into Mathcad to get the x values? Any takers to help, I am new to Mathcad.