Mathcad

Attempting to do basic "For Loop" program on a nested matrix/vector using Mathcad prime 4.0. As you can see below the right "test" program snippet is displaying an error.The error message I get is reads "This operation can only be performed on an array". The left "test" program snippet is performing the evaluation when the "k" counter is omitted from "chk" variable. In this case returning result for "k" = 4. I was anticipating right "test" program snippet returns a [4x1] matrix or vector after evaluating for each "k" value.   Would someone help with an insight on how to resolve this issue?  

I am getting two different solutions depending on whether I solve indirectly (solve symbolically for the equation first and then plug in variables) or directly (plug variables into the equation and then solve) with the symbolic solver. I have checked using a solve block near the bottom of the sheet and also by hand. I am having trouble recognizing where the the incorrect solution from the direct method is coming from... Is it not good practice to send units through the symbolic solver? Any help is appreciated.

This is PRIME 4.0.  Start with:   Result:

Dear Mathcad Community   Anybody knows if I can change font size and color (make them bigger and bold black for example) on the graphs to present few graphs on 1 page in a report ?   Regards, Tomek

Hello to all expert Mathcaders 🙂   I have to preface my question by saying that I am a newbie in the whole field of acoustics. I am however an expert in structural analysis. So please answer my question keeping in mind that fact. I now find myself in a situation where I have to determine the structure-borne sound/sound transmission characteristics of rubber structures. With the aid of harmonic analyses, I can determine the sound transfer function (in dB) and the so called transmission loss (also in dB) of the these structures. I can then make plots of for example transmission loss (in dB) versus frequency (Hz). However, the x-axis, which is the frequency is a linear distribution of the frequencies which corresponds to the frequencies as derived from the harmonic analysis. So let us say I performed my harmonic analysis for a frequency range from 0Hz to 500 Hz at intervals of 1Hz. That means that I have 501 result points for the frequency and the determined values of the

Hello, hope you are doing well,   I am trying to solve a system of 2 differential equations. However at the end of the solving block, i get the 'This value must be scalar' error. Any ideas? Sincerely, *I am using Mathcad 15.

Hi guys,I used Mathcad prime 3.0 to create a work sheet for On-Bottom Stability Design of Submarine Pipelines according to the DNV-RP-F109 recommended practice. However, when i would like to print my page (as pdf or to printer) it takes extremely long and the program does not respond. Is there anything to solve this problem? Is it perhaps better to work in Mathcad 15?I have spend a great deal of time in creating the worksheet and thus would rather keep working in Mathcad prime 3.0 instead of Mathcad 15, what is your advice on the matter?kind regards,Sagar

Hello! I installed Mathcad 15 yesterday, requested a test license during installation and also signed up on the PTC website. It worked, only until i had to deinstall it due to other programs (Autodesk Revit 2018) not working after insallation of Mathcad 15. Now i am trying to reinstall it, but i don't know if i can get a new license or how to use the existing one. Please help, as i have no clue on how the whole licensing works here. Best regards, C

Having trouble figuring out how to do this and put it into mathcad, any help is appreciated!

Hello, Everyone. From testing :   Thanks in advance.

Hi, I'm a new user (but in fact a very old one) with mathcad prime 4. Since few month I'm my own boss. For the first time I have bought mathcad prime and install it, before it was TI guy who do that for me. But I have more than 6000 mathcad files  (from mathcad 8 to mathcad prime 3). I need to convert some of them but I need mathcad 15. I don't have mathcad 15 but someone explain to me that I have the right to install mathcad 15 and mathcad prime on the same computer... I can't use both mathcad in same time but only for converting.   Is it right ? where can I find mathcad 15?    Yves Rossignol 

Describing the Network for a Five-bus Power SystemCalculates the load flow given a five-bus power system  Applicable in electrical engineering, specifically involving electricity and energy  Performs using series, matrices, arrays, transmission lines and transformer data, pi equivalents, pi shunt, shunt data, Jacobian matrix, Newton-Raphson algorithm, iteration, line losses, etc.      This worksheet using PTC Mathcad shows you how to describe the network for a five-bus power system, using a matrix containing the transmitting and receiving bus numbers, the series impedance, and shunt admittance.  You can also capture shunt data and bus data in matrices. To begin, you are shown how to enter data in an array series and the data of the shunt equipment in another array. Shunt elements may represent reactive power compensation at certain system buses.  In this case, the reactance of the corresponding compensation device (capacitor or inductor) is calcu

Hello,   'im following this threadhttps://community.ptc.com/t5/PTC-Mathcad-Questions/spherical-plots/td-p/369091 to plot a sphere. I thought I had understood all the procedure, converting the spherical coordinates into cartesian and plotting.   However, i've try to plot only a section of them (i.e. half of it, or form theta = 0 to theta = 3*pi/4) and didn't work. I've try change the start and end values of range.   Can anyone give a hint where to find this subject to study or what modifications I need to do to be able to plot this?   Thanks!

Hello,When I try double clicking any of my calculation sheets I get "there was a problem sending the command to the program"I work on a network license for Mathcad 15. OS is Windows 7. Anyone faced this problem before?There is a way to get around this of course by clicking 'open' in mathcad and navigate to the location of the file, or by copying the path directly into the path box.Any suggestions on what could be the problem?Many thanks,Ahmad

Hi Team,   I'm brand new user of Mathcad Prime 4.0.   Trying to solve simple equation by iteration. What is the easiest way to solve this attached equation.   Idea behind is to change or increase k1 until left and right side are equal or at least close to each other (let's say error of 0.01). Everything else is a constant.  Thank you in advance

Hi Has anyone done something similar  in mathcad that I can use as a guide to write a four fours solver in mathcad? A self learning automated solver is my goal.    

Hello, my question is if there is a way to find all the points given a vector Y1, for a function, without having to evaluate each one manually (as seen in my file with point 4.609 and finding the X1 = 0.677), that the vector Y1 will change values (but all within the range of vectors X and Y), Thank you.

log(a, b)n-rootexpa/b Apollonian circlesa*b Cassini ovala+b Video Link : 2089a-b Hyperbola

Hello everyone   Attached to this post is a zip file with prime 3 sheet and an excel with the data. I need to fit this data using the following equation:   y = ax^2+bx+c   The solution I tried is not able to find an awnser.   Can anyone help me find a good fit to the data?

Hi everyone!, Someone says that this calculation is not correct, for you how is it?

Hello, Everyone. From Testing :   Thanks in advance.

Hello,   I am designing a Steel Sheet Pile wall for a project and I'm having an issue with solve blocks not actually solving the equations in the "Given" area.   For this design, I am trying to determine my embedment depth to reach Sum of Forces = 0 and Sum of Moments = 0. I have initial guess values based on conservative estimates and was intending to have Mathcad solve for an exact solution.   The issue I'm having is that Mathcad will provide a solution, and then when I try to verify the solution, Sum of Forces does = 0, however Sum of Moments does not.   The conventional method I am basing my approach on is shown in the "Conventional" attachment and the actual site characteristics are shown in the "Project Site" attachment. These are purely for reference if there happen to be any Civil Engineers looking at this post.   Do you all have any ideas why this might be the case? I appreciate any help you can provide!   Thanks Riley  

Hi. How can i solve for the angle and get it into a number not a matrix?

What is the definition and operation of [row,col]    Does this mean all rows and all columns selected and read off a data file?>

Hi, I am new to matlab and I wanted to know what are the different ways of creating .mat files as shown in the picture attached?   are these done from the command window? imported from excelt or text? both? any good explanation    What is an array, cell, structure, string?