Mathcad

Hi!   I am working on a project regarding image analysis (object counting, area dimensions, etc..) Using 'canny edge detector' I isolate edges and fill object or background which interests me. I have tried using 'floodfill algorithm' from here:  https://community.ptc.com/t5/PTC-Mathcad/Objects-Counting/td-p/283337  but with bigger matrix, I have encountered 'not enough memory' issue.   So I wrote my own 'scanline floodfill algorythm'. Algorithm is colouring next pixels until it reaches pixel with value '1', then depending on direction in which it colours, and free space, it leaves seed with value 255(x+1) or 250(x-1). Then it checks the location of seeds and continues with colouring starting from this seed. (image is stripy because when writing, it was easier for me to find the loop which leaved UNcolored pixels) While I was writing my algorythm, it looked promising in terms of performance, but in final form it is very slow. I have no experience in programming

Hey guys,wish you all a happy new jear.I would have another short question maybe a guy can help me with this expression:Can anyone see my failure?Thx 😃

Hi Guys,I have another 2nd moment issue I am struggling with.This is the overall task:So far I have calculated the area, centroid and second moments for the waterplane as follows:andWhat I then struggle with is combining the second moments of the two shapes. I am of the belief that I can get the overall second moment of the entire waterplane by adding the two individual second moments about centroids i.e. JoL = JL (for the ship) + JL (for the appendage)I have JL for the ship and I believe to get JL for the appendage I need to convert the second moment about the aft perpendicular to the centroid which I thought could be done as follows:But I am obviously not getting the answer right for JL. I have also not even got to thinking how the overall JT value is obtainable?Any help warmly welcomed as always.Andy

Imagine a plain (x,y) with 3 points (x1,y1), (x2,y2), (x3,y3) at it, not positioned in a line. At each of the 3 points is fixed a straight wire with given length L1, L2, L3, protruding to z-space. Find the spatial coordinates of the point (x,y,z), where the 3 ends of the wires can find together.From Wolfgang Issel using MC14 on Windows 7

have a problem in solving a numerical double integration, two variables dependent on each other, the boundary for one of them is known, but the other is not.tried to sole it in mathcad but i think that there is an error in inputs, or how to put it in mathcad in the right manner

I have a client who is using Prime 3.1 and I would like to share my Prime 4.0 file with them. I cannot see a "save as legacy" option and cutting and pasting doesn'r seem to work either.

How do I generate a color-coded contour plot with three columns of tabulated data in Mathcad Prime 4? I've seen articles on how to plot a z-axis with the x- and y-axes defined as functions, but I don't want to do that. I want to take my measured and tabulated x, y, and z data and put it in a contour plot. Thanks in advance.

Are its bug?

hello,I installed MathCAD Prime 4.0, and my help file is English. I want to display another language help files.It is better that display the help files of English and another language at the same time.Tips:1.MathCAD Prime 4.0 help files are based on the technology of Tomcat, it means when you open the MathCAD Prime 4.0 help, you can paste the web address "http://127.0.0.1:64871/index.jspx" to web broswer application, it will display the local language help automatically.2.The installed help file pack is in "C:\Program Files\PTC\Mathcad Prime 4.0\Help\project\WEB-INF\volume", you can see what kind of lang pack installed.3.The reason i want to different help files is i want to learn more.How to change the web address parameters in address bar of web browser application, that i can read different help files at same time?

I'm aware that Mathcad Prime can communicate with Creo parametric, although I have tried it yet.  I'm wondering how far I can take this.  If I use Mathcad to parametrically build a component in Creo, can I also automatically apply boundary conditions to that model for use in Creo Simulate FEA?  I'd really only need pressures on areas and some displacement constraints.  (I'm not set up to experiment myself yet, so I'm asking to get some background on what's possible - to justify getting setup and then spending time streamlining the design process.)Thanks.

Hello,I am currently running Mathcad Prime 3.1 non-subscription.  I am considering the upgrade to Prime 4.0.1. In your opinion are the updates worth the update cost.  It does not appear to me that there is much in the way of updates this time.  2. What are the advantages of using the subscription set up versus buying the full update?  What does subscription get me?  I am only aware of this update in the last year or so.  My structural analysis program I have is subscription based and they send out updates multiple times per year and many are substantial additional functions.  3. Will the Roark's worksheets that are supposed to come out work with Prime 3.1? Just curious about other opinions.

Hi, I was using MathCAD Express Prime and whenever I randomly get the system error called System Error: Item have already been added. Key in dictionary: System.Int32[] Key being added: System.Int32[]It was working fine until recently. This error has been occuring in seemly random locations and times in vector locations such as FaccumTA(6)= What should I do? Thanks!

Hello,In the attached worksheet, could you please help me to see the output values of the function "Int(beta,phi)" for a range of beta and phi?All the best,Payman

Hi,I have a new problem. I want to solve a ODE-system with variable parameter. In the picture you see a minimal example.I want solve the ODE with variable a so that i get 5 different solutions of the ODE-system. Is there a solution without to use a program? AN if I need a program, how looks it.thanks for helping!

The attached Mathcad Prime 3.1 worksheet (and screenshot) adds a 4th column to the array (or is it a matrix?) with the weight of pipe filled with water per foot. Creating the forth column with a definition works. The if statement tries to accomplish the same goal, what am I doing wrong?

Is there any worked examples in calculating the spring life.

Hello,I'm encountering an error when trying to install Mathcad on windows 10. I have never installed Mathcad before and am using a trial license file that was emailed to me after registering for an account. I can't seem to find anyone having a similar error. I'm running the installer as administrator in windows 8 compatibility mode, and I've tried both normal and silent installations but get the same error each time. I attached a picture of the error. Please let me know if you have any ideas. Thank you.Also, I should note that I installed Mathcad prime to find it is not compatible with the file I am trying to open(.xmcd), so I am trying to install Mathcad 15.

After a more than a year and waiting a big upgrade where they are suppose to get closer to the options of Mathcad 15 they improved very little.  They added equation wrap.....that's it???Would like to see some simple upgrades like;Boarders...around text, around math, around sheetAdjust margins independently, not three ridiculous levelsadd simple shapes like arrows, lines, circle, squares so that calculations can become more readable.After waiting through the first 4 Prime systems to come out and the biggest thing in the last revision is math wrap....are you kidding me.  Mathcad 15 had so much over any of these prime editions and it does not look like PTC has any desire to make this product as good as it was back then.

Hello,I have solved a DGL with Rkadapt-Routine (Runge-Kutta-Verfahren, adaptiv) , whitch generated following arrays:Now i want to build the acceleration-Matrix by dividing vx over t.So i have to divide each Element and write them into a new Matrix for the acceleration.I think we have to write a little program for it and that's my problem.Can please somebody help me to program it?Thank you for your efforts.best regards, Volker

Hello,I have installed both MathCAD Prime 3.0 and 4.0, today i uninstall MathCAD Prime 3.0, then .mcdx file association lost and can't recovery association.Here is my effort:open "Control Panel"->“file association configuration”, but there is no .mcdx file extension in the list, so fix failed.use mouse right click button on the .mcdx file ,and select "open method" to choose "C:\Program Files\PTC\Mathcad Prime 4.0\MathcadPrime.exe", still no use. The .mcdx file icon is still white and double click .mcdx file can't open it with MathCAD Prime 4.0.How to resolve this problem?

In the attached 3.1 worksheet 4 1x2 matrices are being combined. The values in the first column have units while the second column is unitless. For some reason Mathcad is adding a ft unit to the 0 value. If changed to 1 the units disappear. Why does this happen?

Hello All,I have been working on an integration problem which I was stuck on in which I should have known the identity cos^2(x) = 1/2+cos(2x)/2.I am wondering if there is a way maybe using mathcad's symbolics that I could have worked this out i.e. by Mathcad telling me sin^2(x) is an identity or to get Mathcad to list such identities?Any thoughts?Cheers,Andy

Hello User Community,So I have another issue similar to yesterday where I am trying to follow the logic to the solution to a problem I have.Again I am sure this is my poor Algebra skills but looking for clarity.Below is the problem is the question and the model answer:The part I am struggling to follow is the displacement mass difference derivation. I follow that:i.e. the product of the initial density and under water volume must equal the second density and underwater volume. Therefore, the first density and underwater volume is equal to the second density multiplied by the initial volume plus the difference in volumes i.e. the second volume.I can also follow that:The difference in displacement mass (between floating in salt water to floating in near fresh water) is equal to the second density multiplied by the difference in volumes which logically is going to give a difference in masses. This being equal to the difference in densities multiplied by the initial volume.I can also follo

How to change the font to ZH-CN font?I can change the words to different Chinese Simplified font in MathCAD 15.0, but i can't find any Chinese Simplified font in MathCAD Prime 3.0/4.0.

Hi,I' new in Mathcad Prime. i need it to solve ODE systems.I try to solve the Example of the GDG solver with the AdamsBDF methode. My problem is the vector function. I don't find any solution. Same thing with rkfixed. I hope anyone can help me.