Mathcad

"Бросая в воду камешки, смотри на круги, ими  образуемые; иначе такое бросание будет пустою забавою."Козьма Прутков — Википедия"Throwing pebbles into the water, look at the ripples they form on the surface. Otherwise this activity will be an empty amusement."Kozma Prutkov - Wikipedia Video Link : 7311 One branch: Video Link : 7314

Hello everyone,Does anyone know if mathcad provides a function that allows us to know what are the values that have the same frequency, and the frequency too, when the mathcad "mode(A,B,...)"  function returns the "multimodal" error?To be more clear, it is given the vector A, consisting of N elements with random values included within certain limits, I want a function that let me know what are the elements of A that have the same statistical frequency, and what is the statistical frequency, since the mathcad 15 function "mode(A)"  returns "mutimodal error" if in the vector there are more than one value with the same statistical frequency.Thank youFM

Hi all,I have had a look through previous posts on here and couldn't find anything that would do the job so thought I would ask.  I am trying to turn a vector of nested vectors (can each be different sizes) into one single vector, as per the attached Mathcad sheet.I'm sure this is possible but so far the answer is managing to elude me!Thanks for much

Hallo,i have a Problem i need to solve fast 😞Problem:Density is a function of pressure and temperatureI can create a cloud of points for the density:                         TemperaturePressure                 100°          200°          300°         100bar           Density      Density     200 bar     300 bar           etc                             My problem is now, how c

I'm using Mathcad Prime 2.0 and am pretty sure the feature to highlight redefined variables is not there. Is it in a later version, or planned for a future version?

how to show MATHCAD  information and calculation direct to ARBORTEXT

When I define real numbers and try to use it in an array I get the message that one of the symbols needs to be a real number, They are all real numbers. See attached Mathcad file Example.What am I doing incorrectly?

New to MathCAD and running into all kinds of issues regarding if statements and range variables... my first problem is that x never seems to be defined anywhere and I believe I have defined it as a range variable (i could be wrong) and since x is never defined nothing is being evaluated. Any help you can offer would be greatly appreciated 

How do I get Prime 3.1 to make use of WaterSteamPro? I see from various postings that it does now work, but I can't get it to work; I get "Variable not defined" whenever I try to use a WSP function.I have copied wspmcad.dll from the Mathcad 15 userefi folder into the PTC\Mathcad Prime 3.1\Custom Functions folder. Is that correct? Is there enything else or different that I should be doing? It worked for CoolProps, but seemingly not for WaterSteamPro.I tried Prime at version 1, but gave up in disgust. This is my first time to use Prime since then. I am probably making some fundamental mistake. But I see a couple of postings by Valery Ochkov showing WaterSteamPro working in Prime 3.0 (eg messages #222892), so I know it should be possible.

    Hello, Everyone.   Thanks in advance for your time and help.        Regards.

Hello All,Last instalment on Fourier.Next on Prime/Mathcad 'signal processing function' pack.Just here there some topics in the chapter.Maybe later on Laplace and Z-transforms, after my immediate items on the things to do list..I needed to practice it for smart grid textbook I plan to start working on soon.Karl.

I need to solve the equations for X,Y and Z.  My current issue is I need a single equiation for each to solve the system.  What is happening is I end up with a  +/- solution due to the radical in the denominator.  So how do I get MathCAD to use just the positive value and solve for all three variables?

hi everyone I need to make one homework with "Successive Gauss elimination method". Text is:Deploy successive Gauss elimination method using palette Programming for solving the system of equations:

Hello All,Last instalment on Fourier.Next on Prime/Mathcad 'signal processing function' pack.Just here there some topics in the chapter.Maybe later on Laplace and Z-transforms.I needed to practice it for smart grid textbook I plan to start working on soon.Karl.

I am uploading an example where i created an excel table with component and added 3 vectors as input. If i arrange the number it works fine but when i press the mouse somewhere else to go out of the excel format it mixes again the numbers

Hi Everyone I would like to know how to include a database that allows me Mathcad Prime extract specific values to my calculationsEXAMPLEAS THESE COULD TURN TABLES OF EXCEL AS FOLLOWS?I'm starting to use this tool, I would greatly appreciate your help

alfa = 21.0375please clarify, how two solve the first 2 calcualtion

Hello,I wish my email finds everyone happy and sound. I need to reverse the scale in a graph that I have attached . The graph is z vs u(z). I need to start the scale values in the graph form lowest at the top and highest at the bottom. I will appreciate if you can help me with this.ThanksFaisal

Dear,Please find attached my qurey. Please explain how to use solve function in the attached equation

Hello community,I have a problem with using mathcad 15. When I start the program and open a new sheet, all i can see is a grey window (see screenshot attached). Also when i open old mathcad sheets, no caculations are visisble. When I scroll, some numbers blink up-but just for a very short time. So it looks like mathcad is acutally working but a grey mask is upon my numbers/calculations. I reinstalled the program and changed settings in order to solve the problem. Unfortunately nothing was successfull so far. Does anybody know the problem or hast some good andvice?best regardsBenjamin

Hello fellow MCers,I have a problem with a data set filter. My aim is to have a function that creates out of a given set of data points another set that contains 2 to the power of k elements being randomly selected; with k an integer.So I created these functions in MC15. The annoying fact is that it works fine when I have a data set whose number of elements is close to 2k; e.g. 525.However, it fails to converge to a solution if the number of elements in the initial set is close to the next 2k.E.g. data set containing 555 elements. It puts out a 512 element vector - fine.Change number of data elements to say, 999, it has troubles finding a solution. Whereas the next 2k element size of 1033 yields 1024.My suspicion is that it probably has to to do with the way I'm generating a set of random integers (for the trim function) by invoking the runif function and truncating the real numbers to an integer.Thanks in advanceRaiko

It's time for my semi-regular update, rationalization and general cogitation on the whichness and the whereforeness of multi-dimensional arrays (MDAs) in Mathcad.   This time, I'm going to start off with a revamp of my Nested Array support functions.   To kick off the process, I'd like to present the shape function.  shape is intended to specify the structure of a nested array with the intent of being able to both generate and populate an array given this specification.shape(A😞 returns the number of elements in each dimension of A. If A is not an array (eg, a scalar, string or function), then shape returns 0.  If A is a vector or (non-nested) array, then shape returns a 2-vector giving the number of rows and number of columns in A. If A is nested and all the elements of A are arrays of the same shape, then shape returns the shape of (one of) the elements. If A is nested and the elements of A have different shapes, then shape returns an array showing the s

Hello,I am currently working on a project in Mathcad. With some help of Google I was able to make everything work.Except one thing... I would like to output multiple variables from a for loop. Or I would just like to access them AFTER the for loop.Something that I've been trying is this:The output of the for-loop is X. Now when I show X, it shows a matrix with 3 elements. But I am not able to retrieve the contents of the matrix.If I try to retrieve the first column it returns ({789,38}), but I would like to get the matrix I inserted back.Thanks in advance!

Prime: How to create an " ellipsis" of a long formula or break it up so it fits in one page? I have very long formula and do not fit in one page. I will like to break it in 2 or more parts so it can be shown on paper (1 page fits all). How is this done in Prime? see eg.

My next chapter is on Fourier Fast Transforms then followed by Prime Signal Processing Pack. I had come across a number of signals and systems books, mostly at the undergraduate level and were published by USA authors. One book at UG level I had purchased close just over 8 years ago for me came to be the most detailed, thorough, and lucid. I had read more in it than I could remember, I needed it to refer to some material and I came to remember how much I had already read. I like to share the title with you. If you are going to be serious signal and systems person this should be on your shelf.The author has another book on signal processing, but this is on UG signals and systems. Published in UK and elsewhere.Linear Systems And Signals 2nd Ed. by B.P. Lathi. Publisher Oxford. I recommend signals and systems be a 2 semester course. There is too much material to cover in 1 semester, and running thru it in 1 semester will pose difficulties in other related courses.  Too much material