Mathcad

Given how little versions changed, it has frustrated us all that we cannot save in older versions.  I suspect this is largely a marketing ploy to force upgrades and new purchases. And, probably controlled by a simple version check.  So after a little thinking, digging and experimenting, I have been able to open 5.0 files in 4.0.  I haven't played with it much and I'm sure it's limited - but it might help someone someday.    With the new version file a.) Change the extension to .zip b.) Unzip to a folder c.) Delete app.xml in docProps folder   With the older version i.) Save any file ii.) Change the extension to .zip iii.) Unzip to a folder iv.) Copy the app.xlm in the docProps folder v.) Paste this 'old' app.xlm into the folder where you deleted the last one.  You should just be able to re-use this file anytime you want to do this.   Go back to the 'new' version folder: Re-Zip all folders and files that had been unzipped. Change extension from .z

Hi, Is it possible to reset variables? For example, if I want to have one file with multiple different calculations inclduing a variable for diameter, is it possible to have a line break or something, so that any variables above it are not used? Therefore variable for diameter needs to be redefined again.  I know that just re-using the same variable redefines it, and that I could use D, D_1, D_2 and so on, but I do not find these acceptable solutions as it increases potential for calculating errors. And sorry for asking this, I know this must be a common question, but I don't seem to be finding the old ones.  

I am trying to find a Variable in a "F"+subscript(tl) format. Find only searches for "F" alone, but that finds F with any subscript or tl but that finds any variable with tl subscript. How do I find my "F"+subscript(tl)s? p.s. This forum wont even let me format the subscript ...  p.s. If PTC decided to wage war upon subscripts, why did they not superscript them in the convertor???

Dear PTC Mathcad Community,I want to ask for clarification on the behaviour of units and symbolic substitution in Mathcad Prime (similar topics have already been raised, but I still haven't found an appropriate answer for my issue). So I try to find a symbolic expression for epsilon_c2, which is a parameter of the equation N.Solver succeeded with the issue, but with incompatible units (see picture)So, I have tried to find out the solution in the community, but the advice of @Werner_E  with calculation options didn't resolve the issue (see the picture)So my issues are: 1. How to make the symbolic solving more "seamless" with appropriate units' manipulation in the solutions?2. Why does Mathcad not see the assigned values of the  epsilon_c2 obtained in the previous solution? After some time, when the file has been refreshed, some magic happened, and now I can use the roots of epsilon c1 and c2 in a "normal" manner.But the next issue is that it doesn't let me

I have two vectors .. ztop and z ztop shows the depth of each layer (cumulative value of z in each layer) . ztop  has 11 valuesz shows points in that depth .. it approximately increases by 0.02 in each layer. ( it has 3670 values) each layer has its gamma and its ztop .. ( both have 11 values)what I need is to write a program that will repeat gamma values for each z so I get the 3670 gamma values . In the first layer instead of having one gamma( 17 kN/m3) one value for all the layer , I need to get a vector which repeat this gamma as many as z in this particular layer .. and do the same for the rest layers. Can you help me with that? 

Recently, I was in the position of trying to explain to a 6- and 8- year old how to play the board game Battleship. (Kids from my generation had commercials that seemed to explain the basics of the game fairly well.) While trying to explain the concept of the grid to them and search algorithms, I couldn’t help but wonder, “How could this be done in Mathcad Prime?”     This month’s challenge, should you choose to accept it, is fairly open-ended: simulate various aspects of the Battleship game in Mathcad. Here are some suggestions:   Write a program that will place the ships on the ocean grid. The ships must be placed horizontally or vertically; no diagonals. Ships can’t overlap one another. Do you place the ships randomly or according to some kind of optimized algorithm? Alternatively, can you use Advanced Input Controls to allow the user to place the ships on the ocean grid? Display the placement of the ships using the plotting capability. Write an algorithm for

I want to use Python scripting in MathCAD Prime 11, but upon selecting python in the dropdown menu in the advanced controls editor, MathCAD hard crashes. I don't even get a chance to press "apply" or close the dialogue box. Everything closes. There is no stalling or freezing. It just crashes instantly. No error message is produced. What is going on? How do I fix this? My understanding is that, if Python shows up as an option, MathCAD has registered to appropriate location for the python executable. Is that correct? Python version 3.9.18 Steps. 1. Start MathCad with blank worksheet.2. Insert Advanced Control "Text Box"3. Name variable "aaa0" (or anything really).4. Right-click on the text box and press "edit"5. In scripting language drop-down box, select Python6. Watch MCP 11 crash.

Hi,I have a problem that is sensitive to guess values. I am attempting to copy a method that was posted some time ago https://community.ptc.com/t5/Mathcad/Solve-block-problem-3-1/td-p/43434 but I get an error as follows:I am sure the fix is trival but I have a had no luck fixing it. Any help would be appreciated.ThanksRoss 

Hi everyone, I have this function that I used to find R from it  Now I want to find the min, max and max  from it ..but didn't work . It tells me that the values should be scalar  and when I do this , it gives me the same results of the original one not the averageI need to find the min, average , and max valuesThanks Yusra  

Hello! My question is: Why can't I plot the function f(t) by typing it in Y-axis area?The only way to plot it is to type the equation value of the function itself.  What I want is this:    Best regards,Sergey Dukman

How can I update my MathCad 14 license since I installed a new internal hard drive in my desktop computer?I changed the internal hard drive in my desktop PC.  The new hard drive has a new MAC address so my Mathcad 14 will no longer open and run on the machine.How can I get an  updated license to solve this problem? 

Hi there It has been days since I started working in this task , but couldn't reach the right result I need to draw this graph in mathcad I have two values >>z ( depth a reading taking each 0.02 m )  so in one meter we have 50 z-values and qc ( resistance in that  z depth)  I need to write a program that will choose the minimum values of ( q , 12 MPa ) if  change through z depth in one meter is less than 12MPa and the minimum value of of ( q , 15 MPa ) if the change through one meter is bigger than 12 MPa the sheet is attached Thanks Yusra 

I have a Mathcad 15 file where I can plot the absolute value of two functions that have real and imaginary components. When i converted the file to Mathcad Prime 11 it provides error. Because the graphs are at the end of the calculations sheets, i am only providing screen shots for now, to avoid having to attached the complete calculation sheets. But let me know if i need to submit the complete files for review. thank you in advance, Rogelio

In my HVAC load calculation, I have the units in the matrix column in Watts.But, I  need units to be Btu/hr.I tried various options without success. I request help.Pl. see below.Also attached Mathcad file.

Hi, and Merry XmasI' trying to work with LeastSquaresFit and functions and variables NOT unitless, and I'm having problems.I have a variable and some data obtained by interpolationI want to find a value for  such that the function  fits the y values.I have definedDimensionally everything seems correct:But, when I try to use I get: "These units are not compatible".Which units? Everything now is unitless!Thanks

Hello Everyone.From : To :How to simplify ---> 0 ? Thanks in advance.Regards.

Hi,I have encountered a problem. Normally, I know how to prepare a list box, but in this instance, I need to create a dynamic list box such that input from another list box influences it. Specifically, I need to create a list box asking for the “Bolt Type,” but for that, I need two inputs, similar to a real case scenario: Bolt types depend on “Standard” and “Unit System.” Please find the attached image that I saw in a PDF. Please help me to create this in Mathcad Prime. Thanks in advance. The image: 

Hello,   As you may have seen, there is a recently introduced bug that is affecting Mathcad file attachments. We are investigating with the assistance of Khoros but are having trouble reproducing the issue. So, I was hoping a few of you might be able to help us out. If you are posting an attachment, could you try first without zipping the file. If it fails, go ahead and use a zip file but message me with a link to the post and description of what happened.   Additionally, if any of you have issues with attachments and have the opportunity could you try adding attachments from a different device on a different network and let me know the results.   Thanks!

Добрий день. Допоможіть змінити мову в програмі на українську або на російську. Дякую

This should be a simple problem, but the units in MathCAD don't work together...125 hp...but instead I get...Is there a way to make the units work with the units or do I have to bypass all of all of that to put in my values without units?See attached MathCAD Prime 9.0.0.0

Hi guysnew hereI have worked with mathcad a few times, but never with very complex sheetsI'm trying to do a calculation sheet for the Cross laminated timber (CLT) gamma values, which are used to accound for weak layers in a laminate.I have been able to create the matrices, but in a non automatic way. I'd like to be able to make the sheet build them automatically, with the correct size for the given niumber of layers.The PDF from ProHolz provides the calculation on page 5-7, and the indices are already given for placement in the matrix.But I cant get it to work, I always have an issue with the indices i-1 when its the first line, cause the indices simply don't exist for 0...Basically I want to just write down the number of layers, and the dimension, but then it should be automaticthe Matrix V and vector S always vary in size depending on the number of layersor use a trick like this, because once the matrices are build, I could just use the right one, but for a 3 layer -composition, the

Currently using MathCAD v15 (M050). I have Prime 10 but am having licensing issues at the moment. Anyway, I'm having trouble understanding why the invlaplace function won't evaluate as shown in the attachment. If I remove the absolute value sign, then it all works as expected (am I just running up against a domain issue and need to use the "assume" keyword.....or something......?)Any advice is welcomed and appreciated! If Prime 10 has no problem with it, then that's my answer (just gotta lean on IT to get the license issues sorted). Thanks!

Hallo Mathcad User,ich nutze Mathcad 10. Und wollte fragen, wo man benutzerdefiniert einstellen kann, dass mir Gramm in "g" angezeigt wird und ich nicht "gm" schreiben muss. "gm" ist ja die vor eingestellte Einheit für Massen und ich würde es viel gerne als "g" stehen haben.Liebe GrüßeSaro 

So a few days ago i made a post of my graphs not working. Back then i asked 3 teachers to look at it but they all couldn't solve it. Luckly the ptc community could.But now i need to present the solution and i want to add fancy things so it looks more complex then it is.For example first check of something is a range but somehow my second value wont work for it.Any other idea's to make it look more complicated? 

Maybe I am the weird but I would like to be able to format results using commas to make the "thousands" and "millions" clear.I realize that one can use engineering notation with powers of 10^3, 10^6, etc. but it would be nice to be able to have "3,000.00" or "42,000,500"One has always had that available in Excel (or its long departed competitors... Anyone remember Visicalc or SuperCalc?)--Doug