Mathcad

HiI'm using prime 3 and I want to write a bisection method code but I'm getting an error as follow :1/ I can't write (i+1) as a subscript for the variable name.For this problem, I think I solved it by defining a new variable j as (i+1), but I'm not sure if this is correct or not ?2/ I get an error telling me that the (ai) variable is undefined !!Please help and see the attachment

I'm using a while loop to evaluate a function. Then variables of the function is output for graphing purposes. However, I get an error message of "This variable is undefined"? How do I get rid of this message?Thank you-

In Mathcad Prime 3 - without animation but with units

With Kepler's 2-d laws of planetary motionSee pleaseKepler's laws of planetary motion - Wikipedia, the free encyclopediaPS One more idea for Mathcad-clockOld Mathcad-clock - Re: Mathcad-clock for Windows

To allI am struggling to get the correct syntax to calculate the moments from a PSD. Can anyone point me in the right direction?Attached is the theoretical equations. I have a "discrete" input PSD (freq,PSDvalue) (from an input file which I allocate to mcd" vector") but cannot get the correct syntaxThanksRegards

To allI am trying to do a sanity check against a xls doc set-up by a colleague. It uses the xls function NORMDIST()The aim is to get the cum. Distribution for 1s, 2s and 3s (s=sigma) for a mean=0 and std dev. = 1The xls was set up as followsSigmavalue=1 a=2*NORMDIST(sigmavalue,0,1)-1Sigmavalue=2 b=2*NORMDIST(sigmavalue,0,1)-(1+a)Sigmavalue=3 c=1-(a+b)I believe the mcad function pnorm() does the same but I can’t quite figure out how to get the pnorm value for 1s, 2s and 3s withoutsetting up the same equations (see below). I f I do I get the same answers but I think there is a quicker way of doing ita=2*pnorm(1,0,1)-1b=2*pnorm(2,0,1)-1-ac= 1-(a+b)ThanksRegardsJXB

Hi, I need an advice with my problem... I make a static design of steel beam..and I want to read parameters(like A,Iy,Iz etc..) of steel cross section like HEA,HEB,IPE and others EN steel profiles from my excel table..I did it with READEXCEL argument but I think it is too complicate for me to make cca 2000 arguments ( *LOOK ATTACHED MATHCAD FILE) , because I have around 2000 steel profiles. I am looking for advice how to do it easier. And It is possible to show parameters for choosed profile in Table not in Matrix? I want to results look like table with 2 columns and x rows... in first column will be name of parameter like A,Iy,Iz, etc. and in second column will be value of those parametes, which will change depend on chosen Steel profile..My next problem is how to insert jpg. picture like matrix to mathcad??...Thanks for answers

I am using MathCad 11, which will not export to any known CAD format. There seems to be no DXF option for export, either.Are there any newer MathCad versions which will support file export in STEP or STL formats?Is there a work-around, or a third-party translator available? MathCad is still my favorite math/graphing application, but it is only useful for presentations, not for building physical models via CAD.Thanks,Steve

can you help answering the question using MATHCAD 15 in the attached photo

I recently saw a video called "The Code". In one segment a man was in a darkened room with a very light air current flowing up from the floor. He was using a little kids toy to blow soap bubbles and had great ability to capture those bubbles intact. He could attach two bubbles together and then three, six and even ten! After the bubbles were joined he was somehow able to use some kind of needle point straw to inject a colored dye into the geometric shape formed in the center (the trigonal pyramid, the cube and even a dodecahedron.) After wasting nearly 20 dollars on bubble toys I decided instead to turn to Mathcad. Am wondering if such a picture can be generated highlighting the shapes formed by intersecting spheres.

Hello all,Question much easier asked with an example:It is drawing a line from the end of one plot to the start of the next.Is there a way to stop this? I can change plot type from line to points, but then I need to make my step size very small and the plot does not look as pretty. Also my CPU is lacking in the grunt department, trying to keep the MathCAD hour glass to minimum

I was wondering if there is a way for seeing a readout of coordinates of the specific points that make up a trace in an XY plot.In Mathcad 15 it was possible to right click on a graph and select Trace which displayed the x and y co-ordinates of the nearest point when you clicked on the graph near a point. Is there a way to do this in Prime?

I am getting error as too many initial conditions in ode solve.I attached the code below.can anyone help me.Thank you in advance.

Hi , i make a calculation of steel beam in Mathcad 15 ..and I dont know is there a function for pictures to show picture which i want.... for example I got steel cross-section HEB picture and I want to change it for UPE or something..I dont want to change it manualy everytime is there ani integration with some picture program or how can I do it?? thanks

Is it possible to create a plot with two different trace types?The idea is to plot a continuous signal using the line trace and plot a stem trace to illustrate discrete sample times on the continuous signal.

I get the error noted at the bottom. How do I resolve the error message below? I've attached my MathCAD file. Thanks-

Hello everyone.I find myself trying to calculate the calorific value of natural gas based on the application of a series of equations described in Rule AGA in its report No. 8. I doubt in the interpretation of these equations, especially in how I handle values of "SC" because I get an error.Thanks in advancePD. Attached a spreadsheet.

Are there any more thoughts on avoiding blank 3d plots?This is with V15M030, on two (almost) identical corporate machines running the same worksheet, where one machine will show the 3d plot, while the other wont.It's a common corporate base machine, with slightly different additional software tools (e.g. Matlab, etc.)The worksheet 3d plots have borders switched off.Machine 2: If the 'blank' 3d plot is copied and pasted, say into powerpoint, they image is there, it just isn't being displayed in the live mathcad.Machine 1: On the 'good' machine, a scroll of the mouse will cause the 3d plot display to blank out, but will re-display if the mouse is clicked back inside the plot.Any thoughts or suggestions about how to make the plots show on the grumpy machine, or on debug techniques.(I know that 3d plots have been a long running issue 😉Philip

Hello All,I have to do Dynamic Analysis with Equivalent Linear Model in soil dynamics/soil structure interaction. Could you provide me a sample code of Equivalent Linear Model.Thank you in advanced. Regards,Keshab

Я знаю две супружеские пары. Они развелись и потом поженились, сменив своих партнеров.I know two couples. They divorced and then married, changing their partners.It is one math model of this life

The first section of my programme is fine where it shows the progression of infection after every cycle however its this next part i am having a problem with. I am trying to see how the percentage of immunised population affects the final amount of infected people however I am having some trouble as to varying the immunised percent (x) in my programme loop. I only need to display the infected for the final stage of the loop not after every cycle which I have managed to do for a specifi x value however cant seem to get it for a range of x values from 0-1 at 0.01 intervals. Any help would be appreciated.in the long run i also want to average this out over a certain amount of runs. In otherwords i want to creat a matrix to hold the amount of infected population against the immuised percent x while varying that x value from 0-1. I then want to repeat that for say 1000 cycles and plot the average.

So, I have attached my worksheet. The thing I need to do is plot each column of S1 (may be 1 or 2) as y-axis and then plot i (which is basically the length of each column). But for some reason I am unable to do so. Can you guyz help me with that? i am a NOOB in the field of Mathcad.thansk

In the attached pdf some great person created, in Mathcad 15 or earlier, a great example of double integration to determine beam deflection. I am attempting to redo their work in Prime before modifying it for other beams. In the attached Prime worksheet, I've attempted to use the Solve block to perform a similar function to their find command. Can someone tell me what is incorrect about my use of the solve block? It's outputting the same values as the guess values.

Hi all,I want to know how to use Adams function for higher terms like degree greater than 3 in mathcad.Can anyone explain this with an example.I also attached a code which contains 3 higher order degree. I am unable to correct the error.Thank you