Mathcad

I have a vector [A], which can have any number of even rows and will contain only zeros or ones in each element. I would then like to create another vector [B], which will always have one more than half the number of rows in [A]. The top row element of [B] is always 1, and the following elements depend on the corresponding pairs of elements in [A], working from top to bottom. The element of [B] should be zero only if both the corresponding two elements of [A] are zero, otherwise it should be one. Something like this for a 4 row [A] and 3 row [B]: And for a 6 row [A] and 4 row [B]: Hopefully someone can help me out!Thanks.

Hi All.Our firm has two full Mathcad Prime licences, however, would like to use the unit conversion on another computer.We think of having the free Mathcad Express on the third PC, but we are puzzled if it's free for commercial use also.Could someone please clarify?Thanks

As per the original post.    Hi, Can someone please help me convert the files in this folder to MathCad Prime 7 files?Thanks!

I'm checking a students results and for some reason his result has vector of "[1 x 1]" instead of showing the element values of this simple 3 element vector.  I disabled the students and entered the equation myself (in red) and it shows correct results (except they are still inside square brackets for some reason.    Whats the deal?  

Hi , Kindly suggest where to find the Edit script( script editor ) option in Mathcad prime 8; which was earlier available in insert menu under control tab in Mathcad 15Have attached images for reference below1.2.3.

Hi Folks, This is probably an easy one.  Is there any way to suppress the labels for solve blocks, or at least rotate them so they aren't such a mess?  The solve block works fine, but I don't want to use this in a presentation.  The examples in the documentation don't have the labels off to the left, so there must be some way to turn them off.Thanks 😉    

I'm building a matrix where the off-diagonals are equal (e.g. M(1,3) = M(3,1) etc.).   Is there a way to reference the M(1,3) to populate the M(3,1) element? That way I would just need to populate the diagonal and upper triangle and below the diagonal would be completed. thanks,russ

Hi, I am new to Mathcad and in the self learning stages. I am trying to plot a graph and getting the following errors: values in the axes must be real numbers or expressions. Can somebody guide me?

Hi Folks, I'm trying to do 3D plots in Prime 7 to show my students.  The contour plots appear correct on the screen, but the 3D plots (surface plots) don't.  They look OK when I save to PDF, though.  Any idea what I'm doing wrong?  PDF and screen shot are attached. Also, only the quick plot function seems to do 3D plots.  Am I missing something?  3D plotting in V15 worked at least as well as this. Mark

When the load is not very heavy - everything seems to be OK - see the first file. When the load is heavy, the center of gravity of the right section of the rope is in that place. Why? Send me please pictures with errors - not only Mathcad sheets!

Hi I am trying to solve system of 2 ODE as shown below. I am unable to find out the issue. The error happens when I m trying to relate the first ode to the second one. I am getting error as "Unknown error: ode% _function% _illegal % _context. Please help! 

Same problem. Can you help me? Where to find contact wit PTC?

Hi,In the attached I show a simple example of referencing a matrix element with two approaches.  When I use ORIGIN:=1 the second method fails.  Is this due to my incorrect use of the second method? The 1st method uses the matrix index from Vector/Matrix Operators menu.  The 2nd method is just A(row,col). thanks,russ

Hi experts, I have some questions about the math calculation problems (case 1 and case 2), please see below description and the Mathcad file. For case 1: I have fire different resistance needs to be calculated. so I try to use two ways to calculate it.the first one is like that, I calculate every resistance separately and add them up to get the total resistance.but I think this is not a good way when I have a lot of resistance.The other way, I try to use the matrix way to do it. it is more convenient but I don't know how to calculate the total value by using a matrix.For case 2: I want to change the Width from 0.1mm to 0.91mm and also have 5 resistance.but when I try to define the Width from 0.1mm to 0.91mm. my calculation can't work.For example, if width = 0.1mm, I want to calculate the total resistance based on width = 0.1mmif width = 0.2mm, I want to calculate the total resistance based on width = 0.2mmif width = 0.3mm, I want to calculate the total res

I've seen a couple of PTC articles showing a symbolic solve block using a 'dummy' variable in the solve variable list (which isn't represented in the solve expressions).  The examples involved inequalities.  They use  't'  and it appears needed to force a comprehensive result.  I attach a file with two examples. Does someone know the intention, and interpretation, of this dummy variable?

Hello, I am trying to activate/transfer our Mathcad license to a new computer. After clicking "activate" in Mathcad Prime 3.1, it displays the correct MAC address of our new computer, but it is also asking me for a product code to complete activation. Where can I find the product code? Thank you.

I've converted a MathCAD file into MathCAD Prime (ver. 7).   For some reason the plot doesn't show.   The functions appear to be working.   Not sure what I'm doing wrong.  (see attached screen capture) EDIT - attached Mathcad Prime document

I find the calculation options in 8.0 very constraining compared to 2001i Professional, which I had previously used for 20 years.  In 8.0, if you don't enable "Stop all calculations,"  the program solves the entire worksheet every time a change is made in a subroutine.  In 2001i in auto mode there was no action until you dropped down to the page using the subroutine- and even then it only executed down to that page.  In 8.0 if you are converting several data files in the same program, it will execute all of them every time a subroutine change is made.  This can mean significant finger twiddling.  In the prior version, you could move back and forth from the subroutine to the first data set and optimize or modify the conversion process without the time penalty associated with processing the later cases.  Or is there a work-around? 

Greetings, Across all industries, when we do math we often want to find the minimum or maximum point of a function. There are many ways, but the most reliable is to do it iteratively. I have built a function that does this. Attached is the function itself. Put it in a closed area at the start of your template so that you can always call it. The inputs of optima(f,x0,xf) are any single variable function "f", and the starting value "x0" and ending value "xf" of the domain of that function. It outputs the x value of the function at its maxima, the value at that x value, the x value of the minima, and the value of the function at its minima. It finds absolute maxima and minima of the function only. You can make a multivariable function be single variable by defining a new function of a single variable, where the other inputs are all constants. For example, f(x)=g(x,c1,c2,c3) This is the interesting part: To make it run quickly but still get a precise answer, I split the proc

I am using Mathcad Prime Release 8.0 and Datecode8.0.0.0I have set of formulas with a units. If I change the unit on the result of the first formula the following formulas are loosing their unit.Here are the errors that I facedNo error message or warning. Inconsistent results.

Please have a look at the following example-function:If I want to plot this function with Newton (N) on the y-Axes and Millimeters (mm) on the x-Axes, the following happens:Unfortunately my Mathcad Prime 8.0 is in German, but the error is the following:Plotting failed. Replace complex Values or NaN-values with real numbers.Also you can see that it replaces mm with mm / m. If I erase the units out of the fuction like this:Then it will work, as you can see here: Does somebody know how I can fix this, so that I do not have to erase the units from my function?I will leave the mathcad-document attached here.GreetingsSpedex

Hi Experts, I am a beginner to use Mathcad.and I have a question about the flow chart.Please see the below figure, I can do the below figure by using Matlab, but I am confused about how to use Mathcad to do the same thing, can someone give an example of how to do it, thanks. 

I have a 4 row vector (A) and a 2 row vector (B) and I want to multiply the 1st two row elements of (A) each by the first element of (B) and the 3rd & 4th row elements of (A) each by the 2nd row element of (B). I want to do this element by element to give me a 4 row vector at the end. It's made more complicated by the fact the numbers of rows in both vectors can change although (A) will always have twice the number of rows as (B). I thought of trying to match the number of rows in (B) to (A) so I can simply multiply the two but not sure how to go about this.  Any help appreciated.  

Hi, Everyone.From the following: Thanks in advance for your time and help.Best Regards.Loi.  

Hi, Everyone.From the following:   How to join 4 Patches, the above, into one Mathcad structure ? (or reverse: "split" ?) Thanks in advance for your time and help.Best Regards.Loi.