Mathcad

Hi everyone, How to Create Summation from this Formula If you guys have any idea of thisPlease tell me how to solve this 

I am using PTC Mathcad Prime 12.0.0.0 (Academic). Whenever I change a result’s displayed unit, the calculation region turns grey and dependent expressions stop evaluating. Automatic calculation is enabled, but the AUTO indicator remains orange.Simple example: Define d := 3 mm Define a := d³ · π and evaluate it. Change the result unit from L to mm³. The result displays approximately 84.823 mm³, but the region stays grey and a subsequent evaluation of a shows “?”. Recalculating the worksheet does not resolve the issue.

Attached is a zip file containing a large matrix in a solve block.There are two questions in yellow boxes.  Any help is appreciated.The jpg file shows the geometry of the diffusion equation problem.

Hello everyone! I need to minimize an objective function, but the algorithm fails to converge. I have tried changing the initial conditions several times, yet nothing changes. Given the extensive experience of the members of this community, I would be very grateful if someone could help me solve this problem. Thanks again. Best regards.

I have inserted a table from excel and i now want to add the values from two of those columns together, but i keep getting the error value must be a scalar or matrix.  

This month’s challenge has a civil engineering theme – actually, a bit of an ancient civil engineering theme related to my adopted home of Valencia, Spain. One of its most famous landmarks is the Torres de Serranos (Serranos Towers), one of the last remnants of its medieval wall:Torres de Serranos in Valencia, SpainIn this challenge, you will perform some of the same calculations that master builder Pere Balaguer worked on in the 1390s. Except, of course, you have the benefit of modern software for engineering calculations. Specifically, you will perform analysis of the Gothic arch at its entrance:Gothic Arch Gate Entrance to the Torres de SerranosDimensions and assumptions:The arch is a classic three-hinged arch mechanism. The span (horizontal width at the opening) is 6 meters. The height from the spring line (where the arch transitions from vertical support and begins its inward curve) to the apex hinge is 4 meters. It carries a uniform dead load from the floor above of 45 kN/m acros

Is this no longer possible?It tries to attach and then disappears from the attached files.I am using an iPad.

Experts, I am exploring how to leverage the Mathcad COM API to automate for different  workflows:For already existing worksheets how can I start accessing worksheet content and extracting variables and their calculated values for further processing or integration with other applications (this can be any application). Also, Is it possible to generate Mathcad worksheets and reports from scratch using the API, including creating and populating both text and mathematical regions through code?I would appreciate any recommendations, workarounds, or alternative approaches for achieving these automation requirements using the Mathcad COM API or other available methods.

Hello, After many years not using Mathcad, I wanted to load my old datasheet developed in Mathcad 15. I have set up the free version just to have a sense of “Whao.. I like it” but it turns that the converter is not working: no license but I have a license for 30days no?Please Is there someone to help? I would like to see if the Prime (mathcad12.0) fits my new needs. thanks!John

Hi, I am trying to solve an ODE to model a “Ball and Cone” tuned mass damper. The equations simulate a ball mounted inside a pair of cones with mass on top. The ball oscillates up and down an inclined slope with a curved region at the apex between the up/down slopes. I am using Radau solver as it is a stiff equation. Adams/BDF “does not converge”. The 1st solve block uses a simplified simulation for base excitation of the TMD. Using Radau with modest levels of damping the first solve block result gives a discontinuous response which should not happen given the inclined slope is a tangent to the curved section at the apex. Any ideas how I can correct this discontinuity would be appreciated.I tried using sigmoid transition functions (2nd solve block) for the step between inclined slope and radius but this gives a large number error.The 3rd solve block includes an extra degree of freedom to simulate the tower on which the damper is mounted, which is the aim of the program. This won’t solv

Chapter 9: Wind and Seismic Loads on Buildings, Part 2            Description:          This application computes the seismic forces, shears, and overturning moments at each level of a building, following the Equivalent Lateral Force Procedure of Section 9.4 of ASCE Standard 7-93. The building must meet the limitations for use of this procedure given in section 9.3.5 of ASCE Standard 7-93. Previous: Chapter 9, Part 1Next: Chapter 9, Part 3

Hello, I have created a Mathcad sheet where I can find the capacity of a footing on a competent soil. The sheet is working but I would like to optimize at certain areas. My first improvement would be to see if instead of manually putting them as arrays, if it is possible to put in a condensed way so I do not have to type in the layer properties manually in case there are more than 10 or even 100 layers. My Second improvement will be if there is way to have a shortened code where “Footing Layer Ends” does the same output. Currently, it is for four layers but I would like to have it in a way that if there are multiple layers, it will handle the task instead of writing multiple if-else stateemnts. Thank you in advance. My version is 10.0.1.0

Dear all I want to do iteration of p-y curve of Pile using Mathcad primeformulasand the minimum result format should be Depth (m) y (m) y (mm) Theta (rad) Moment (kNm) Shear (kN) p (kN/m) Es (kN/m2) Mobilized (%) Verified (R=0)  this is some basic input COMBINE SOIL PARAMETER                SOIL TYPE    Z    A+Y_50    pu_sand+pu_clay    k    m    m    kN/m    "    CLAY (Matlock)"    1.5    2.03    216    0"    CLAY (Matlock)"    3    1.03    302.4    0"    CLAY (Matlock)"    4.5    0.93    453.6    0"    CLAY (Matlock)"    6    0.93    691.2    0"    CLAY (Matlock)"    7.5    0.93    777.6    0"    CLAY (Matlock)"    9    0.93    961.2    0"    CLAY (Matlock)"    10.5    0.915    1922.4    0"    CLAY (Matlock)"    12    0.915    1922.4    0"    CLAY (Matlock)"    13.5    0.915    2084.4    0"    CLAY (Matlock)"    15    0.915    2203.2    0"    CLAY (Matlock)"    16.5    0.915    1652.4    0"    CLAY (Matlock)"    18    0.915    1771.2    0"    CLAY (Matlock)"    19.

Good morning, I spun my wheels on this for a while yesterday, and now I'm looking for help. The attached file was created in MathCAD Prime 8.0. In order for it to work, make sure that the csv file and the mathcad file are in the same directory. What it's supposed to do is accept a csv file with a specific structure and convert it into a vector of properties with MathCAD units. It was supposed to be a short program, but I'm running into a bug that I can't seem to work around gracefully.  When I have the READCSV(filename) function inside of a program, my output has no units, but when I have my READCSV function outside of the program, it works.  I want the READCSV function to work inside of the program so that I can call multiple csv files and combine the properties of each, otherwise the purpose of my overly-complicated data entry experiment is moot. Please help!  Thank you,Kevin

Good afternoon, Community,Would anyone be kind enough to help me trouble shoot the attached Mathcad Prime 11 file.I am try to calculate the thickness of an angle to withstand the hydro pressure of wet concrete, using the symbolic method, with no luck. ThanksBoyer

Hello!We have 2 users with 2 different computers reporting the same issue with their prime files.I don’t know if it has something to do with the latest august Windows 11 Cumulative update (KB5121003)?The issue started happening yesterday after the users updated their Windows 11.When we try to Save as PDF or use the Print function we get the same errors. And we have tried several PDF printers. It only creates a .PDF file with 0kb in size. I uploaded 2 files that we are experiencing this issue with.

Hello,   I have been trying to work out how to change the units from Joules to MegaJoules/Giga Joules in the question below. When I change this it has "The variable is undefined, check the label set correctly"   So the answer should be 279 MJ/hr     Is this a matter of changing something in the settings or assigning this vaue?   I have seen other problems with MJ and GJ so know it can be done.   Thanks

Hi everyone,I’ve made a small free Windows utility called **FyMathcad** for PTC Mathcad Prime.The first tool I implemented is something I’ve wanted for long Mathcad worksheets: an automatic **Table of Contents generator**.FyMathcad can:* detect level-1 headings in the active Mathcad Prime worksheet* preview the headings and their page numbers* insert or update a Table of Contents* automatically number the heading captions* create clickable links from the TOC to the corresponding headings* adjust page numbers after inserting the TOC* create a timestamped backup before modifying the worksheetThe workflow is simple:1. Open and save the worksheet in Mathcad Prime.2. Run **Print chapters** if you want to preview the detected headings.3. Run **Insert TOC** to generate or update the TOC.The project is available here:https://github.com/spectereye/fymathcadIt is free to use for both personal and commercial work.This is the first tool in FyMathcad, so I’m also interested in ideas for other small

Hello all,Please, is there any way to generate a table of contents in PTC Mathcad Prime 3 ?Thanks in advancedBest RegardsRedwane

Hi,I am trying to solve variable T_H, starting with a guess value of for example 10 kN/m. With this value z(x) is solved using Odesolve, then T_H is evaluated and a new value of 135 kN/m is found. This iteration continues until the correct value of T_H is iterated. Could someone please guide me on how to correctly implement this in Mathcad?  

I want to scale M(x) equation by a scalar (0.805). Is there a way to do this without making my expressions unitless? After searching online for info about the error statement, I could not find a workaround. Note: whenever 0.805 is not applied to M(x) the equation graphs properly. M(x) is defined in kip-ft.

I would like to READTEXT from text file which would form a two-column matrix.  That part is easy.  Then I would like to copy the contents of the first matrix to a second matrix, then use that second matrix for other purposes, but unlinked to the first matrix.