Mathcad

Hello, everyone! I started to use mathcad a few days ago and I'm trying to define the properties(area, moment of inertia, product of inertia, etc) of a section defined by 2 (n x 1) vectors. There's an attached picture. Sorry if this is too basic 😞

Hi, When evaluating the inverse Matrix of A, i got two different results in MP4 using the symbolical evaluation and the evaluation with "=". Creating the same inverse Matrix in MC15 does give the same correct results by evaluating the same way like above.   Has somebody the same experience when calculating Matrices in Prime? See attachement please.  

Hello   I would like to ask if is possible to find a function with two variables z(y,x) on Mathcad based on the data I have. It would be nice to find this function and with it to plot the surface.   Thank you and good weekend Jonas

Color pictures, shheets and animations of the article Томография = информатика + математика + физика + биология Tomography = IT + Mathematic + Physic + Biology  The draft text of the article шы in attach too

Hi,   i need help programming a 2D laplacian filter filter using a D x y 2 = [ 0 1 0 1 − 4 1 0 1 0 ] {\displaystyle \mathbf {D} _{xy}^{2}={\begin{bmatrix}0&1&0\\1&-4&1\\0&1&0\end{bmatrix}}} matrix. The program should load a picture via READBMP then apply the filter and output the edited picture. It would be really cool if you could also comment your program since i have no experience using Mathcad at all.   Thank you very much JensE

Hi,   Could anyone please help to recover the mathcad prime 4.0 worksheet? When I was working on this, a blue windows suddenly prompted out and then my PC rebooted. After that, the file cannot be opened again.   It would be grateful if you could help to fix the file. The zip file includes the worsksheet and log file.   Many thanks. Tom

Hi everyone,   I programmed a Newton-Method, but when I want to get the vector with results, there ist a failure message saying: "This Value Must be a Matrix of Scalar Elements". I unfortunatelly can´t see the mistake and already run out of ideas, but maybe some of you guys could know the solution.   Thanks!  

Hi everyone, I would like to be able to use the Minimize built-in function in a program.  I am obviously making something wrong (see attached example). I understand that (even if one does not need to write it explicitly) there is a "solve block" involved. Is it possible to use a solve block in a program? thanks a lot for any hints. Best regards Claudio   PS: I do not succeed to attach the file, it says "the content of the attachment doesn't match its file type" it is a normal xmcd file 😞 !! please help!

Hello to all,   I am looking to see if you can tell MathCAD to integrate not along the x axis by along the y axis.   In the attached I am trying to integrate the area above the plotted line i.e. from 0m upward to 5m integrating all the values of x in terms of y as opposed to the default which is to integrate under the line all the values of y in terms of x. There is madness to the logic as to why I want to do this I promise.   If I can get this to work the answer should obviously be 25m^2.   Thanks   Andy

I am dealing with MC11 (but I saw also M15). 1) Is there a way to find math text or just text in a collapsed area? In my testing just expanded areas are searched. In alternative (but I read another answer that suggests there are no tricks)  2) Is there a way to Expand/Collapse all areas at once, so to avoid the repeated action n-times, with n in my case being over 15? Thanks  

Why an error?

Thee vidio is here - http://communities.ptc.com/videos/5464   The worksheet (see the attach) is one killer of memory. How can we optimize the sheet? This video has been deleted(view in My Videos)This video is currently being processed. Please try again in a few minutes.(view in My Videos)

Hello to all,   I am starting to explore the world of 3D plots in MathCAD.    I am relatively comfortable with 2D xy plots and creating graphs and evaluating them etc by using xy data and applying a polynomial function to extrapolate a curve from said plots. I am also comfortable with evaluating the area under the curve produced in this way with various integrals.    I am not looking at how challenging it may be to add the 3rd dimension i.e. if I have a variety of xyz data plots, how hard is it to plot them into a 3D plot and to bound a volume within them? Further how challenging is it to evaluate the volume within i.e. to find the centroid of the volume etc?   Thanks,   Andy.    

We have a deformed torus: No problem to create its Tomography - Wikipedia animation:       No problem to create animations with y and/or z Do you have more nice, quickly etc method? For 4D body too! With 4 animations! Give me please f(x, y, z, w) for it!

Hello to all,   I am interested to know if it is possible to mathmatically define a curve as a function. i.e. if I have an xy plot which I have created a curve for i.e. a polyfit or similar. Is it then possible to get MathCAD to define that plot as a function of x? i.e. if I have a polyfit line (which I understand to essentialy be an extrapolation of the xy plots themselves) can this polyfit line be defined as a function i.e. y(x)?   Thanks,   Andy

Hello everyone, I am new in programming with Mathcad Prime 4.0 and I am trying to found a solution to this problem. I would like to make a while loop, in which a Mathcad worksheet is re-launched at each iteration. To explain better: I have a worksheet (called ConvWorksheet) that compute a lot of stuff and in the end compute a convergence flag (1 if convergence is reached, 0 otherwise). I need to write an other worksheet that controls when ConvWorksheet has finally computed flag = 1. I tried with the "Include Worksheet" command inside the while loop, but I cannot insert it. Does anyone know how to do this? Thank you a lot!

Hello guys till now i found some examples for accesing Mathcad sheets and extracting outputs and it works.    The Problem is now i read here a lot about sth like that it is not possible to recalculate some sort of functions. Well I rewrited a code i found here and there is a small problem (maybe big not sure). Tried to get customer services and I have a ticket but ....have not that much of time to wait for them to call me (already one week passed).    Ok attached you can find my Mathcad sheet and everything works fine with it when i set the values. If i do it now with visual basic i get an error for getvalue:   ComException error     What Im doing is to set some values in my Mathcad Sheet and in the end i have a function with minimize. I defined that function as "optimal" look here:      Well if i set the values in Mathcad everything works well and i have a solution. BUT if i do it with visul basic COMexception occurs. What is wrong he

Hello! I'm trying to calculate a simple formula but I have some problems with the units. I'm getting the following message: These units are not compatible. Everything is in mm, and I'm using Mathcad Prime 3.0 express. What is the problem?

Does MathCAD offer a function that creates Real, Positive Definite Matrices of a specified size? For example, say I'd like a square matrix of size 10 x 10 that is positive definite. Is there a function that does this?   Alternately, if that is not available, perhaps I could use a work-around: create the Lower Triangular (L), or Upper Triangular (U), portion of a symmetric matrix, multiply it myself to create the full symmetric matrix. Hopefully, the result would be a positive definite matrix. Does MathCAD offer a function that outputs L or U?

Hello to all,   I am looking at analysing a shape that I have in an image. My end goal is to plot the shape in an xy plot in MathCAD. I am looking to see how people either: approach mathmatically defining a curve (not a simple curve by the way); or tracing an image (I have not used the likes of AutoCAD in some years so assume CAD software has come on a bit) to create a curve and to evaluate its properties.   Look forward to hearing your thoughts.   Andy

Hello,I have a matrix of steel shapes and the corresponding section properties.Currently for each section property I am using a vlookup function.  This requires I type in the shape of the beam inside each command every time.  There has to be a way to combine a vlookup and extract an entire row based on that lookup item.  I assume I could then put the extracted items into a single column matrix and have each passed into the variables.  This would allow me to only type the shape into a single lookup function.  I'm new to Mathcad so I'm probably overlooking the obvious, but I have searched for a solution and can't find one.  Anyone know of a way to do what I am trying to do?.

Hello everyone, I am having issues with using the range function in mathcad to plot two functions I have written. The range variable I have created is presenting an error when I include it in one of my functions in order to generate the independent variables that will be used by the other 2 functions. It seems like there should be a fairly simple solution to this issue but this is my first time using mathcad so I don't seem to have the knowledge to solve it. I have attached my file where it is possible to see the issue that I have. THank you for your time, and I hope that you can help.

Hi there,    i searched a lot in this forum but couldnt find sth which works.  Actually i would like to send with vb some variables into my mathcad 15 sheet and show just the results. If there is any way to show also the graphs, would be top.    Im not good at vb so i thought like a template or an example which works and i could change the code according to my needs.    Thanks in advance for a solution.   

В этюде будет рассказано, как по изображению (графическому файлу) можно получить матрицу с числами и что с этой матрицей можно потом сделать.Файлы задач этюда в аттач.Рис. 5.1. Точечное рисование портрета Че Гевары - см. Video Link : 1657  Рис. 5.2. Поиск портрета в Интернете и сохранение его на диске  Рис. 5.3. Вставка картинки в Mathcad-документ Рис. 5.4. Преобразование картинки в матрицу Рис. 5.5. Библиотека функций Mathcad работы с изображениями  Рис. 5.6. Преобразование матрицы в два вектораРис. 5.7. Угадай цветной образ см. Video Link : 5464  and Andy Warhol - Liz -   and Video Link : 5467Рис. 5.8. "Параметрический" эллипсоидРис. 5.9. Эллипсоид, склеенный из двух половинокРис. 5.10. "Точечный" эллипсоид (Mathcad 11)Рис. 5.10a. "Точечный" эллипсоид (Mathcad Prime)Рис. 5.11. «Объемная» лемниската БернуллиРис. 5.12. "Объемная" лемниската Бернулли, построенная в среде Maple Рис. 5.13. "Точечная" скульптура в среде MathcadРис. 5.14. Пасьянс с MathcadРис. 5.

HI   How can I make a variable  like     3Io:=75A   I don't want `3Io  or ~3Io    .3Io   Thanks