Mathcad

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

Hi, I have one question I hope you guys can help me with. I am struggling to get the designations (unit) correct. When I decompose forces I get F (Farad) instead of kg. Please see attached photo to illustrate the problem. I use MathCAD 15 and Windows 8 (if this is relevant). I hope someone can help me, and, in advance, thank you. Best RegardsKjartan

Hello everyoneI did a worksheet in Mathcad and i am looking for a wayy to export the worksheet to a html format like, i think i saw before some worksheets that can be opened in explorer, mozilla, etc. im not totally sure though, what i want to do i use it for a presentation in a classroom in a computer that doesnt have Mathcad.Thanks in advanceAlex

I want to be able to read a known number of multiple input values from one excel sheet and populate the corresponding multiple outputs in another worksheet Those outputs will be a mix of values and text. To do this I assume I need a programming loop. I have a complex worksheet but can someone show me how to do with this in principal with this simple example ?G

Hi!You guys have been such a help for me, and tommerow is my final exam. Yay!Though, I still have one problem.. I really can't figure out how to make a repeating periodic function.An example would be the uploaded file, where I'm trying to make a function look like this.Though I can make the function from -2 -> 2, I cannot figure out how to make it repeatable, like the picture.I really do appericiate any help I can get!Best regardsBen

Please see attached. I can display each ANS(h) for all the vairables answered in the simultaneous equation as shown. However, would like to graph each of the vairables (for example F1Dx) versus (h). Thanks!Steve T.

Good Morning MathCAD Group,Would anybody be kind to help me with the attached files. In the first file, I have pasted the table I'm trying to interpolate and MathCAD interpolation code that I have written, that I think is not working. I have in the table three different values that need to be interpolated before arriving at the correct answer.My second file is trying to program the stiffness of a pile group with a battered pile at different angles.Would anybody please help. Thank you.Regards,Boyer

The MathCAD community may find the attached article interesting. In a largely academic setting we sometime lose sight of the fact that mathematical errors have real world consequences. The Wanapum Dam is rated at 1040 megawatts, construction started in 1959 and operations stared in 1963.

I have this complicated function S(x,y,z) which also reads from previously defined functions. The plot capabilities of mathcas is nowhere near publication quality. I wanted to somehow transfer this plot to another software that has acceptable plotting abilities (e.g. Excel) but I can't find any way to do that. can someone please help me?

Hello all, very new to mathcad, running express prime 3.0 on a trial.I would like to find the intersection of some curves that are already on a plot. I don't have the functions of the curves or lines (lines would be straightforward to find). I've read previous posts that use the solver block method, however as I do not have the equations for the curves, I believe that this is not possible (could be wrong.)How can I find the point of intersection for this given plot? (see image)

We all know the benefits of units in Mathcad, and the Mars Climate Orbiter and the Gimli Glider have been cited numerous times on the forums as examples of why units matter. Here's a couple of lesser known ones though:The Vasa warship:In 1628, crowds in Sweden watched in horror as a new warship, Vasa, sank less than a mile into her maiden voyage, with the death of 30 people on board. Armed with 64 bronze cannons, it was considered by some to be the most powerful warship in the world. Experts who have studied it since it was raised in 1961 say it is asymmetrical, being thicker on the port side than the starboard side. One reason for this could be that the workmen were using different systems of measurement. Archaeologists have found four rulers used by the workmen who built the ship. Two were calibrated in Swedish feet, which had 12 inches, while the other two measured Amsterdam feet, which had 11 inches. Stonehenge model:In the 1984 mockumentary This is Spinal Tap, the members of a fic

Hi,I have trouble with mathcad 14 because it doesn't solve a Matrix. I want to work with a 10x45 matrix and mathcad do nothing. When I try to traspose the 10x45 matrix, mathcad just show "=" and two little black boxes. However when I create, for example, a 5x4 matrix, in that case mathcad does solve it.Maybe some of you have had the same porblem and could help me. Thanks

You can find the answer on this question (paradox) in one Mathcad Discussion about units

Mathcad Prime Express 3.0:This is ingenious!!!Michal Glebowski

Hi im new in Mathcad prime 3, I just want to know or is there already a trend on how to input mixed numbers in mathcad prime 3? i tried commands from mathcad 15 ctrl_shift_+ but it does'nt work... thanks