Mathcad

Greetings! I want to solve this problem using rkfixed function in mathcad prime 2.0. Help would be highly appreciated! I am having trouble understanding the derivative matrix of this function

I'm using Excel and Mathcad files that were perfectly functional on another machine. When I try to run them on my current laptop, I get "Run-time error '430': Class does not support Automation or does not support expected interface"   The problematic code is: Dim Mathcad As Ptc_MathcadPrime_Automation.ApplicationSet Mathcad = New Ptc_MathcadPrime_Automation.Application   I'm using Mathcad Prime 4.0, Excel 365, and Windows 7. Has anyone run into this error before?

Example: A=(0,1,2) now by using rotate keyword Result = rotate(A,180); Result = (2,1,0). But how to do this without keyword ?  

Hi All, This may end up being a very simple question for some of you advanced folks.  I have been using Mathcad for years, but not always at a great depth, and somewhat sporadically.  Anyhow, I was working through some circuits in the s-domain, and MathCad works really well here to quickly narrow down the equations...certainly faster than by hand.  I have attached the file with my question at the very bottom of of the calculations.    I would really like to solve this circuit for Vo/Vi to arrive at the s-domain transfer function.   Is there a one-step solver in Mathcad for this?  I know how to use the symbolic solver to find a solution for any single variable, but wondering if there is a way to find the expression for Vo/Vi?   Please don't laugh too hard if I'm missing something obvious through my ignorance.  I have hunted through Mathcad's help and some of the other community entries out here and have not found anything like this.

Hello, i would like to solve this equations. The equations are correct and testet with few parameters but to solve the complete equations is not working. Do you know what's wrong.   Thanks and regards

  I always run into this problem. I don't know why

Greetings colleagues of the forum, I have the following query:How to create variable names automatically?By programming a loop I get the names of variables but as text strings, I want to get a matrix like the one marked in red?         Is there any way to do it in Mathcad Prime 4? I would appreciate any suggestions.

Quite a lot of our work can essentially be done with the free/express license of MathCAD. Can we, with Express versions, view and partially-manipulate workbooks created with Prime versions? If I, in Prime, create a solve block in a workbook, can someone in Express open that sheet and change the input variables? Can users switch b/w Prime and Express versions easily? Ideally, carrying on the same use-case, if I’m manipulating a workbook from express version but see I want to make a change by using a Prime-only feature, can I click a button to grab the license and unlock the Prime functions?

I am trying to solve a nonlinear equation for the maximum value.  The equation is from Bowles, Foundation Analysis & Design, 5th Edition, Chapter 11-7, page 609, Eq. (11-10).  I am interested in the maximum value of Kp for a given guess value assigned to two variables, rho and psi.  I have tried defining the function before executing the Maximize function and have not had any success finding the maximum value of Kp.  The Mathcad file is attached and I would appreciate any comments regarding format/syntax errors. Please note that all the soil parameters are fixed and the maximum value for the function is the desired result.   Wayne Bell, PE

Hello I have several Mathcad v.15 sheets, which include one or more Excel tables for data input and output purposes.Recently the tables have been disappearing and the Mathcad has started to crash often when the Excel table is double clicked.   The Excel which I have is in Microsoft Office 365 ProPlus: Microsoft Excel 2016 MSO (16.0.9126.2282) 32-bit and the Mathcad is Mathcad 15.0 (M020 [MC15_M020_20121127])   Any suggestions, how to get the sheets to be more stable and more functional?          

Hello, I would like to solve this symbolic equation and save it in a variable. Why is this not possible?   Thanks

Wondering if Mathcad Prime is able to tile worksheets, in order to compare side by side and copy/paste.I believe this was a capability in previous versions.

Good afternoon. I'd like to find the MIN and MAX of a function. Doing MINIMIZE or MINIMIZE I have the error that "the variable is undefined". Doing the derivate it does not work. How can I do? If you want I can attach the code.  

I am trying to get started with Laplace transform in MathCAD 15 and I would like help to find what I did wrong in the document I uploaded. It’s a simple second order RC circuit. V1 is a constant value. I tried to find V2(t). C2V0 and C1V0 are initial conditions of capacitors.   The result I got with invlaplace makes no sense. Thanks

Good morning. I have a function with the variable working into a closed interval; I'd like to find the MEAN value. Using the function MEAN, this function is getting out the save values of the function. How could I do?

  why won't this work?  i am trying to get it to iterate so i can have multiple VR outputs till the VR's start to be the same value i can't even get this thing going right.   The problem i am trying to solve is finding V source using the iterative method. 

Hey all,   I'm trying to solve equations for concentration which change over space (x) and time (t) I never work with PDE, usually only ODE. So of course it does not give results like i want. Can you please help?   Thanks

I am new to Mathcad and having issues getting the program to solve for a variable. I was able to get my first equation to work, but when I tried plugging that value into the second equation I started having issues. The program would not let me plug in my value and solve for D. What am I doing wrong?

Hello everyone,   I'm trying to program a 2D finite difference in time domain problem. However, I can't run the program, since the units do not seem to match. Has anyone an idea of how to disable these units or maybe could tell me what did I do wrong ? Because I don't know if I did mistakes in my program or if units stand as the only problem.   Thanks in advance !   Cyril

Hello. I'm sorry if this question is asked before, but I am having a hard time finding examples for something I expect to be basic function of Mathcad. (using Mathcad Prime 5). I see many basic examples of defining, solving for symbols, but the examples are just one-line,one-variable solutions that just write a equation, solve in one line and stop there.   I'm trying to setup some equations with symbols only (variables not previously defined), then solve for one of the variables, then plug in this solved variable into other equations to solve.   Example, I'm trying to use the slope-deflection method to solve for reactions on a beam. If I predefine almost all the variables, then no problem... if I try to do this symbolically, it doesn't work.   For examples, let's say  I do a2(x) := 50mm + 450mm - x   Now I want to say b2 = 1000mm - a2 << a2 having the symbolic x & Mathcad does not like this. ... Another example, I have defined Mba (E, I, L1, Thetab) :

Can anyone figure out why these two values are not compatible?

Hello, I need help converting over a simple file so i can do my homework. i have been having issues with the converter and i have no idea what i need to update in order to get my mathcad (Mathcad prme 5.0.0.0) to convert this file. Any help is appreciated

Hi All, I have created, for a long time, a file that has grown more and more. Currently the size is 19MB. For some time, when I save it, I find the attached deadly message ...... If I save the file it will reset 0MB ..... How to determine the cause? Thank you.

Dear, I'm new with Mathcad and do not know how to solve a 4th order differential equation with boundary condition, see Maple Solution 

Hello,   I am trying to program a system of 2D finite differences in time domain. I need to split the program into several parts. The cells on the edges of my table are defined by others equations since they carry boundary conditions. My problem is the following :  I use a double "for" loop in order to calculate the value of the temperature in the central cells. However, when I run the program, calculation has been made only for my jmax-1 row, I don't understand why I only have value in that row. Another problem is that I can't manage to calculate temperature in a specific cell by adding the value of a neighbor cell.   If anyone has an idea of what's happeing, you're are more than welcome.   Thanks in advance