Mathcad

I have a real life work problem I'm attempting to use MathCAD to solve. I'm computing the response time history of a coasting rotation inertia and at time zero reverse motor torque is applied. I have an 8th order state space model and I'm using Rkadapt to solve. The motor torque is a function of shaft speed and is thus a function of one of the state variables. I have the function as tabular data (lookup table). Any suggestions on how to formulate the motor torque?

Hi everybody:I have got a problem with MathCad. When I define a function without If statement, everything is fine. However, as you can see from attached MathCad file, with adding if statement in my function, an error appers that "this value must be scalar"Any idea why this happens. I have attached the file.Thank you

Hi Folks,I'm a professor at a large university (40,000 undergrad students and grad students).  I'm teaching a math review class for grad students and asked them to vote on what software they wanted me to use, Mathcad, Matlab, Mathematica or Maple.  I briefly described each and told them Mathcad was capable and the easiest to use.  The vote was unanimous for Matlab, so that's what we're using.I can't help thinking that MCAD users are a small and shrinking group.  Do we have any numbers on the size of the MCAD community and where new users might come from?Thanks for your attention.

I'm looking for a ready-made algorithm "Direct search" (D.M. Himmelblau, Appled Nonlinear Programming, 1972) in Mathcad before 14. Is there such anyone? Thanks in advance.J. Reyzenkind.

I am trying to solve a symbolic inequality with multiple variables.  I can't seem to get a solution in general when I have explicit constants in the constraint that contain decimal points.  How do I go about solving such problems?

Hi..I have one articulation in creo parametric 2.0, and I have to check its feasibility for different condition by passing creo dimension values to mathcad.Now, I have integrated Mathcad Prime 2.0 and creo parametric 2.0 and added mathcad file as a feature in creo model.But my issue is while i am running one condition and regenerating model, mathcad file also getting run and which will take so much time.first of all i have to do all condtion and then only i want to run mathcad file and not for every condition.So please can anyone let me know, how to run mathcad feature as per user requirement and not every time.Thanks,Prashant Pandarkar

Hello,I'm just wondering if mathcad is able to multiplicate two vectros term by term. As an example:(3  4  8  2) x (2  8  7  3)= (6  32  56  6)Thanks by advance for your helpFrançois

I'm trying to solve this differential equation. It's not letting me solve the unknowns.I don't know what I'm doing wrong.Can u please edit my mathcad prime 3.1?Thanks

A floor in the MMA house (more tilepent) One idea for one floor in PTC house:

I'm having a problem with Help in M15 040.  After my first install, M15 wouldn't find the Help files, so I uninstalled it and installed it again.  Now all I get is about half a dozen of the following error dialogs but still no Help.   Has anybody else had this problem?  Win 10 installation, replacing a previously successful Win 7 M15 030 installation.Stuart

I am getting error as 'this value must be a matrix of scalar elements'I attached my code below.Can anyone help me.Thanks in advance.

Is Mathcad 15 compatible with windows 10?

Hello everyone,We have Mathcad prime 3.1. We recently installed PTC Mathcad Express Trial per Aaron Shaw's recommendation  - http://blogs.ptc.com/2012/04/09/converting-your-worksheets-to-mathcad-prime-2-0-in-3-easy-steps/ However, XMCD, MCD converter function is still not working; failed sign says 'Mathcad 15 M010 or a later version is necessary to run the converter'Please help!

In the attached Prime worksheet I am trying to use the "logical or" function within a nested if statement. I believe the error is due to db being a 1x1 vector. Is there a way to convert this from a 1x1 vector to a scalar value?

I'm fairly new to Mathcad (Prime 3.1) and I generally use a spreadsheet program to develop my calculations. I'd like to start converting my spreadsheets to Mathcad sheets, but this hasn't been easy due to the fundamental differences between each program. I'm trying to respect this is much as possible, but I'm having a hard time seeing crossing the bridge between the "excel method" and the "Mathcad method".The table on the second sheet ("Evaluation of Reinforcement Rupture") of the attached XLSX file is basically what I'm trying to recreate in Mathcad. I intend for the user of the Mathcad sheet to make adjustments to this table as needed (adding/deleting rows, changing the value under the "Type" column, etc.), however the formulas for each cell will remain the same.  I've looked at Excel Components, Matrices, Tables, etc., but I'm hitting a wall in the sense that I'm not sure if there is even a comparable approach for Mathcad. Any insight into this would be much appreciated. I've s

I am looking for a mathcad calculation sheet, based for example on the theory of elastic stability by Timoshenko, to determine buckling capability of a column loaded by an eccentric compressive load.

Hi All,I'd like to define and use a truncated normal distribution with both lower and upper limits.I use the general Wikipedia discription for reference:Truncated normal distribution - Wikipedia, the free encyclopediaMy xmcd file is attached.I managed to define the PDF function with only lower limit, and check returns its ok (its integral on the lower bound - infinite range equals 1).However, trying with two limits, the check integral has big values, way more than one.Can anybody help me with this? I don't see where I made something wrong.Thanks in advance.Zsolt

Perhaps I am inputting incorrectly but this is what I get

Hello,How can i use the linear interpolation function in the attached MC 15 sheet?Thank you!

Hello everyone, I’ve been using PTC Mathcad Prime for some time at my workplace and I wrote down some suggestions to make this software even better.Some of it are minor bugs, some are usability issues. I’ve added some would-haves also.Sorry if they overlap with what's been currently discussed (they surely do), but I hope you'll find something worth investigating.BugsWhen you set "Transparent" as default plot background colour and save the file as a template, it switches to "Paper color" when you start a new document.floor() and mantissa() functions should work with units. Image.matrix() function does not work properly. It ignores ORIGIN. Image.Some functions, like match(), return a 1×1 matrix instead of a scalar. Image.Objects in Draft View are not exactly nonprintable.Copy-paste in collapsible area moves everything below the area instead of enlarging the area.UnitsOf() should return actually displayed units. Image. Then would be no need to manually adjust everything further in the wor

Dear friends,I have problem trying to return a range from vlookup.  I have a table input which defines the steel gage number against the metric thickness.  The metric thickness is in column 0 and the gages in subsequent columns.  This variable is named "gages"My calculation sheet is looking at the resistance of steel walls on a silo, and can have up to 35 different thickness in the one silo.  So I have a 1 x 35 input table in which the steel thickness is entered "Sidewall".  This is a unitless variable, which relates to the metric thickness of the steel.All I want to do, using the vlookup function is to return the actual steel gage numbers for each of the Sidewall thicknesses.  Here is what I have entered:wga[rn:vlookup(Sidewall[rn,gages,1)   rn is the range variable 1..35What I was hoping was to get an output wga[rn, which gives me a 1 x 35 matrix of the steel gage numbers.  Instead, what I get is 35 row matrix of nested 1 x 1 matrices.&nbs

I'd like to get  purely real solution out of the symbolic solver (ie not a product of i) - is it possible to require this? For example solving  x^2 +y^2 = 1 for x should return sqrt(1-y^2).Am I just failing to use assume keyword correctly?ThanksJoe

Dear PTC CommunityFrom a set of x and corresponding y values I'm trying to solve a system of equations and for this I'm of course using a set of boundary conditions. One of these is that all solution values are equal to or above zero (i.e. non-negative) but despite using the minerr-function to solve the system I still get negative values. They are, however, quite small and the results are thus usable but it seems strange to me that the negative values can't be avoided. Is there a way to strictly enforce a boundary condition?

How do i know which coefficients go with which independent variables in a second order polynomial with 3 independent variables? I have extracted 10 coefficients but now want the equations to use elsewhere.

Dear friends,here I have a Maple 13 Code which I would like to transfer it in a MathCAD program. Who can do this for me - I do not know Maple very good.I would pay a little if there are serious offers.Thanks