Mathcad

Please help on how to solve this Problem:Where need to find out Values of A, As, A1 & A2.

Hello,I am trying to use a solve block to solve the same equation for a range of inputs using the vectorize function. I have had success doing this before (thanks to other threads I have read here!). For some reason on this particular problem I cannot get it to work. If someone might have any suggestions after looking at the attached worksheet it would be great appreciated. In the worksheet I first solve the problem for a single input which works, then I try the multiple inputs but can't get the solver to return anything other than the inital guess.Thanks,Mike Einhorn

Is it possible to downconvert a Mathcad Prime 3.0 file to Prime 2.0? I have Prime 2.0 at work, but at home I downloaded the free Mathcad Express + 30 day trial. The version I have at home is Prime 3.0. Every once in a while I come up with an idea at home but don't have my work computer with me. I'd like to be able to e-mail the file to myself and use it at work. However, when I attempted that today I couldn't open the file at work using Prime 2.0.Any ideas?

Hello,I'm trying to write an algorithm to calculate centroids of 3 clusters obtained from a data set using the k-means method.Attached is the MC12 worksheet with the algorithm. For some reason, I only get the correct centroid for the first cluster and when using the same function to calculate the centroids for second and third cluster I get the same wrong answer.I found that somebody had posted a worksheet with k-means algorithm a long time ago at this thread:http://communities.ptc.com/thread/17242but the worksheet has been removed from the thread.Thank you,Gigi

Hello! I'm trying to minimize a function with a built-in conjugate gradient/QuasiNewton method and would like to use a MultiStart option. However, it's not activated on my PC when I rightclick on the Minimize command. How can I make it work? Thanks in advance.

Hallo!Ich habe 2 Fragen zu Berechnungen in einer Matrix:1.) Ich möchte die Werte in einer Matrix auf 2 Nachkommastellen runden jedoch wird hier ein Fehler ausgegebenround(b,2)2.) a und b ist eine Matrix mit einer Spalte und drei Zeilen. Ich möchte z. B. den jeweils kleinsten Wert aus der Zeile:min(a,b). Dies liefert jedoch nur den kleinsten Wert der gesamten Matrix. Gibt es hierfür eine Lösung oder muss ich die Matrix in ihre Einzelwerte zerlegen.Danke für eure HilfeAlbert

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Hi everyonemathCAD version: PTC Mathcad 15.0 free trialI have got 2 question:1) First questionDoes anyone know if there is a possibility can import the calculation file (xls, doc, txt, or other.) so that Mathcad treated him as their own expression. My situation:File calculations (doc) I pasted into Mathcad and he treats it as text and not as a function that counts.2) Second questionWhether it is possible to save / preview REPORT Mathcad calculations as fractions, not as decimal notation oris there any tool in MS WORD that will turn me express decimal notation (for example, y = 2a / b) to fractional expression? I know a tool of MS Equation 3.0, however, I have about 30 pages of calculations and creating each of them will with the help of this tool will take me a very long time, so I ask for a tool that can convert all my pages at once

I am using the insert excel component to input data. The data consist of columns with sparatic values in columns C-I. Columns A&B are completely full. I want to graph the sparitic values in C-I against col A. When the data is imported, all of the blank cell come in as zero. when plotting they also plot as zero. I want the plot to connect each value ignoring the zero's that were brought in.Any ideas?thanksRon

I get an error with Radau(init, x1, x2, intvls, D) as 'This value must be a vector.' I'm quite sure I made init and D vectors, and x1 x2 intvls ordinary numbers. Please see the attachment and tell me where the problem is. thanks

HiI hope someone here can help me!I am trying to visualize a function with 2 independent variables like z(x,y) := .... but it does not work.Everytime I generate a "Surface Diagram" / "Surface Plot" and say which function I want to get visualized, Mathcad says "The variable is not defined." to one of the two independents.I look forward for some useful hints! Greetsphil

Hi, Fourier transformation is usually based on exp(jwt). How Can I address Mathcad to do Fourier transformation based on exp(2jwt)

I need to find the coefficients for the functions f_3(x) and g_3(x) that describe the median curves (curve equidistantly spaced from the curve f_1(x)/f_2(x) and g_1(x)/g_2(x), respectively).

I am running a Latin Hyprecube Sampling routine for statistical reliability analysis. I randomdly sample from 9 probability distributions of parameters that from inputs to a crack growth integral equation. When I take a larger number of samples you get unlucky and at least one of combinations of parameter inputs to the integral results in the integral failing to converge for that combination and this results in an error. Is there a way of including a diagnostic line in the program loop that will flag that a combination does not converge (eg like a "time-out" in convergence iterations) but then record this combination as not converging and then continue on with the loop?The attached sheet usually works for several hundred samples but when say n > 300 it often flags an error (sometimes you may need a large number of samples before you get unlucky eg. n = 10,000) which I have been able to isolate through trial and error to prove there is a particular combination that does not converge.

I have MathCAD 15 (M030 [MC15_M030_20131216]) running on a 64 bit Windows 7 laptop with 8gb of RAM and an Intel Core i3 processor. When I run programs that reach a certain length, the whole block turns into a blue mesh. It still works, and the subsequent calculations are good, but I am unable to edit the block. It was discovered earlier today that I could get rid of it by pressing pg up or pg dn (not by scrolling), but it returns again. I've been able to perfectly run the code on every other computer I've tried it on. I've included a screen shot of how it looks and have attached the worksheet. Thanks in advance for any help.

Hello, everyone.I want to solve a somehow complicated ODE system of 5 equations. But the Software seems have problem to solve it.If I change the y5 in the 4th line of my DD matrix, it can be solved. But the results are definitely what I expected.Please check the attachment for the situation.So the questions are:1. Why the MathCAD have problem with solving my origenal matrix?2. what change I need to make to get the results?

Hello,I really don't know how to name this, but here is what I'm trying to do:Let's say cos(2*mt+phi)= -sin(b)/sin(phi); Is there a function in Mathcad Prime 3 that can extract "mt" from the equation and deliver it like : mt = 2 arccos (2*phi)/-sin(b)*sin(phi)? (this is just an example)

HiI'm having trouble installing mathcad 15 on my windows 8 laptop. Does anyone know how to do it?

My installation of MathCAD 14 is messed up. It used to work correctly, but now the multiplication symbol has turned into an empty square. I can't figure out how to restore it to normal. I tried uninstalling and reinstalling MathCAD but it didn't change the behavior.Also, a left-paren and right parent look normal when on just one line. But if I put parens around a fraction e.g. (3/4) I see a a bunch of empty boxes instead of the parentheses.

Hello dear members do not help with the solution? I will be very grateful.

Though one of the 3 variables (of same units) is already defined & worked out but still in the final expression (using these 3 variables) for this particular variable it shows the following warning msg that "This value has units: Force, but must have units: Unitless" & not provoding the result in kN.Kindly suggest to resolve.RegardsPrateek Agarwal.

Hello,I've got a surface plot of some X, Y, Z data that is correct. However, when I add contour lines (or do the 2D contour plot), there are extra contours that do not exist in my data. My Z axis should only have data from 200 to 1100, but in the picture, you can see data well below 200 into the negative values, and some data that exists above 1100. It appears mathcad is trying to interpolate data that isn't there to fill whitespace. When I fill the backplane, it only tints the contours that don't exist with the shade of the backplane fill.Any fixes, or is this a glitch in 15?Thanks

Hello,I'm looking for docoumentation to use a VBA program to call up mathcad and have it calculate a spline for a data set, then send the data back to excel. I can locate my array I need to send in my data just fine, but I'm unsure how to call up MathCad.As an example, here is the mathcad worksheet I'd like to send the data to with VBA. Please not that the data size changes in length depending on the collection run.

Hello,Looking to get multiple outputs from a solve block where some of the outputs are intermediate stages in the calculations. I'm getting an error when I try the normal things one might think of such as entering Tso(Tfo) and Tsi(Tfo). Looking to use the solve block becuase it is faster, but I can stick with the programmed version if that is necessary.I like the Solve block version more, becuase the accuracy should be greater regarding the equations due to where I inserted the radiation componenet, though I think they should be fairly close for the majority of items.

Hi All, I was exploring the objects link at db level. Is there any procedure or way/Utility get entity relationship links at db level.Need guidance to understand.Kindly share your Ideas. Example: How "WTPART", WTDOCUMENT" "WTPartDescribeLink" tables are related in DB, which columns of part & document table has been mapped to WTPartDescribeLink table. Thanks,Chanhasen