Mathcad

I am able to successfully import data via a text file (.txt) by using this READPRN command. However when the .txt file changes (i.e. data change), the import matrix in MathCAD is not automatically updated. I need to close the program down and re-open to have the updated numbers.The question here is, whether if there is a nicer way to do this? Another command maybe? I know I can always do right click “disable evaluation” and “enable evaluation”, but the problem is I open/use this Mathcad sheet through an easy batch code for an another program, so mouse commands are not an option for me.Thanks in advance!

Civie student here, got MathCad Express Prime 3.1 for several of my classes this semester that have labs and thus lab reports. Obviously one of the pros was that it could actually make graphs, compared to Excel which doesn't understand the x-axis. So I'm trying to graph data from a Geotechnical lab - grain size analysis - where the x-axis is diameter (mm) and the y-axis is percentage (unitless). I have three problems (possibly four):Unitless y-axisImporting data from a table (is that how it's done? I don't even know...I'm new to this...)Switching x-axis to the horizontal and y-axis to the vertical (they're currently the other way around)Defining x-axis values going backwards (smaller value towards the right)I say possibly four because reversing the direction of the x-axis scale isn't mandatory, it's just how we usually graph it.So...tips? Suggestions? Is what I'm trying to do impossible? Thanks in advance.

See please one simple optic problem and the symbolic solution:

Would someone be so kind to convert this file to pdf? Thanks in advance.

This study describes in detail the process of calculating energy characteristics of the gas turbine cycle (Brayton cycle) with modeling of the composition and thermophysical properties of air, natural gas and products of combustion along the flow in gas turbine.See Mathcad-sheets attach

Hi all,I am trying to solve a function symbolically.  However, I am having trouble with it, as shown below:As you can see, if I symbolically solve the function in the first line, directly, I get the desired result.  It shows the transposed function and then I evaluate to get the answer.In the second line, I try to assign the function to a function variable.In the third line, I try to call up the function to solve it explicitly, but it fails.  However, it still manages to find the solution, if I don't request 'explicit'.Is there any way to call up a function assigned to a variable and solve it explicitly?Any advice will be greatly appreciated.Cheers.

Hello Guys i have easy task to solved on paper even but can't find the proper code in Mathcad for it.The main task is really simple : A horizontal force of P = 100 N is just sufficient to hold the crate from sliding down the plany, and a horizontal force of P= 350N is required to just push the crate up the plane. Determine the coefficient of static friction between the plany and the crate, and find the mass of the crate.I don't want go deeper in technical aspect of this easy taks to calculate. The problem is in Matchad and my limited knowledge. How to set in equations with diffrent P value and find the solution in Mathcad?My work is seen below. But it's not going to work.The think is probably that i don't know how to use the result from two first equation and moved it to the next two to get the final result of it. Of course still don't know why for Mathcad the value of mi and m is as undefined...

See please http://twt.mpei.ac.ru/ochkov/Planets.pdfCan anybody help me with translation into English?

Case 2Reference [math/0011268] A remarkable periodic solution of the three-body problem in the case of equal masses

This worksheet will enable Design Testers to verify the voltage drop is meeting the Design requirements. Constants for resistance from CRC Handbook of Chemistry and Physics, 57th Edition, 1976-1977, CRC Press, p. F167-168

Hi Guys, previously you help me so I have hope that you will explain me where is problem here:First of all I trying to find x value is in Meters. Of course i don't care about the value of mass and Na because it will reduce during the solving.I don't know why I have x.distance as undefined? And why can't get the result that should be : 0.5 m

Hi, is there an easy way to find the non zero minimum in a matrix?Or is a loop the only way to do it?This is what i have at the moment.

I have a function w(x,y) :I want to evaluate the followng integral :I have defined then vlaues of constants a & b. I want an expression interms of constants C11, C13, C31, C33, D and variables x and y.But when i try to evaluate this integral, it gives the following error:How to solve this integral? I have attached the mathcad (Prime 3.1) file. I would be really greatful if someone could help me with this.

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems. Any recommendation to improve optimization skills on Mathcad is welcome. Regards.I am still working on the list of exercises attached, for now I have just a sketch. When I finished it I can post the solutions.

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems.Any recommendation to improve optimization skills on Mathcad is welcome.Regards.The attached file was built on Mathcad 15.0 .

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems. Any recommendation to improve optimization skills on Mathcad is welcome. Regards.The attached file was built on Mathcad 15.0 .

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems.Any recommendation to improve optimization skills on Mathcad is welcome.Regards.The attached file was built on Mathcad 15.0 .

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems. Any recommendation to improve optimization skills on Mathcad is welcome. Regards.The attached file was built on Mathcad 15.0 .

I am sharing a list of exercises on optimization. The course required Matlab skills, but I am doing it on Mathcad. Until now I didn't have problems. Any recommendation to improve optimization skills on Mathcad is welcome. Regards.The attached file was built on Mathcad 15.0 .

Hi there,I have this little routine (see attached file MC15, Win 7) where I read in parameters from an excel file. For a better oversight of used values I display the assigned values by the explicit command. The catch is, even when restricting it by not using the keyword ALL, it displays all steps back to the very beginning; i.e. when read in from excel.Is there a way to limit the steps back of the explicit function?Raiko

Hello,I have seen that similar topics were opened but I could not find a solution to my problem. So sorry if the solution of this problem was explained somewhere in the ptc community and I missed it.I have a problem opening a file that I created a couple of days ago. I was using Mathcad 14 but I haven't checked which version to be honest. I typed the solution of an exercise that we gave in the class to the students and when I was done I saved the file as "xmcd". In order to send to some colleagues I also saved the file as ".rtf". I wanted to add some comments in the solution. So I tried to open the .xmcd file again but I got "the requested file is not a valid mathcad xml worksheet" error. For the last 2 days I have been trying to find a way to open the file. I tried to uninstall and install Mathcad 14 but it didn't work out. Some people in other topics suggest that upgrading the version might help. I installed Mathcad 15 with free trial license and still cannot open the file.Could you

Hi, everyone,Is there a way to have an integer constraint in solve block?Say, the solution is in form of sin(t) or cos(t), I want to check the maximum values after several periods.Please see attachment.Thank you very much.Shawn

In the final study of the book described some methods for solving problems of stationary heat conductivity.Arguments about the relationship of mathematics and thermal engineering,on the content of lectures on mathematics for students are provided.Mathcad-sheets of the study in attach: Fig. 20.1. Thermal conductivity of a three-layer wall Fig. 20.2. Thermal conductivity of heat insulation materials Fig. 20.3. A calculation of thermal conductivity dependence on temperature in Mathcad Prime Fig. 20.4. Thermal conductivity of pure metals Fig. 20.5. Inertia of reference tabulated thermal conductivity dataFig. 20.6. WaterSteamPro-cubeFig. 20.7. Virtual WaterSteamPro-cube - http://twt.mpei.ac.ru/MCS/Worksheets/WSP/wspCube.xmcdFig. 20.8. Heat engineering Mathcad clock:             

This study describes the common types of differential equations which you will work when solving the problems of thermal engineering tasks. Described the numerical methods for solving such problems. Continued analysis of finite element methods applied to heat transfer problems.The begin of the chapter you can read here Thermal Engineering Studies with Excel, Mathcad and Internet | Valery Ochkov | Springer Mathcad-sheets of the study in attach:Fig. 18.1. Spray cooling pondFig. 18.2. Simulation of Free Flight of Spherical DropFig. 18.3. Flight of water drop in the absence of windFig. 18.4. Flight of water drop in weak headwindFig. 18.5. Flight of water drop in strong headwindFig. 18.6. Solution of Differential Equations with Additional ParameterFig. 18.7. Virtual and real fountainsFig. 18.8. Simulation of Temperature Field of Computer BoardFig. 18.9. Numerical Solution of Non-Stationary Heat Transfer ProblemFig. 18.10. Unsuccessful Attempt to Call pdesolve FunctionFig. 18.11. Solution of

This study explains how to calculate the pressure loss in the pipeline using cloud functions for thermodynamic and transport properties of the fluid. A description is given of finite element methods for the solving of important engineering problems.Fig. 16.1. Throttling of steam in the web site hs-diagram - http://twt.mpei.ac.ru/MCS/Worksheets/PTU/h-s-ExpEng.xmcdFig. 16.2. Web page with the on-line calculation of dynamic viscosity of water - http://twt.mpei.ru/MCS/Worksheets/rbtpp/eng/tab9.xmcdFig. 16.3. List of “cloud” functions of properties of water and steam - Formulation of region 1 (the basic equation for water)Fig. 16.4. URL of the “cloud” function “Water and steam dynamic viscosity”Fig. 16.5. Inserting reference in the “cloud” function of water densityFig. 16.6. Calculation of loss of water pressure in the tubingFig. 16.6a. Calculation of loss of Ethylene Glycol Water Solution pressure in the tubing (with correct unit of dynamic viscosity)Fig. 16.7. Characteristic curve of rela