Mathcad Tips

Hi Mathcad community members,   For those of you who don't know me (some do), my name is Andrew McGough and I'm the product manager for Mathcad here at PTC. I have talked to some of you in the past individually, but I don't get to participate as much as I'd like on the community. I hope this announcement is the start of me being able to be more active here.   I would like to share with you that PTC is announcing the end-of-sale for the following versions of PTC Mathcad, effective December 31, 2021:   Mathcad 15  Mathcad Prime 1.0 – Prime 6.0     Effective January 1, 2022, the only version of PTC Mathcad available for subscription will be PTC Mathcad Prime 7 and future versions of PTC Mathcad Prime. After December 31, 2021, PTC will no longer have the right to sell or distribute software versions moving to end of sale due to a third-party component contained in those versions.    I appreciate the passion of our Mathcad userbase, so I would like to pass along some additional information on a helpful offer. If you currently have a subscription license and wish to continue using your current version of PTC Mathcad while you evaluate Mathcad Prime 7, we are offering a multi-year renewal option that will give you the ability to use your current version for up to four additional years. If you decide to take advantage of this offer, it is important to place the order prior to December 7, 2021 to ensure no issues in booking the order or the subscription start date. PTC may decline or be unable to process orders received after that date. Please contact your PTC account representative or PTC partner for more information.    Please bear in mind that the use of old versions of software does introduce implicit risk in areas of security, hardware, and software platform support.    PTC will continue to provide technical support access, phone assistance and expert input for versions of Mathcad that have reached end-of-sale. PTC will not be able to issue new licenses or provide access to software downloads for end-of-sale versions.    Our customers in English-speaking countries received the End-of-Sale announcement on February 17, 2021. Our global customers are receiving the localized communication now.    We have put together multiple resources for you to answer your questions. Please refer to our FAQ for more information. We know this is a big change so the Mathcad team will be monitoring this thread for feedback.   Best regards,  Andrew McGough,  Product Manager, PTC 

PTC Mathcad Community Challenge is a bimonthly event where we pose a math problem for you to collaborate and solve using Mathcad Prime.

The first two challenges were biased towards mechanical engineering. May’s challenge pertains to geometry. Create a worksheet in which you calculate (1) the diameter of a circle and (2) the length of a side of a square that yields the minimum combined area for a combined perimeter of 1 meter. This is an optimization problem. What tools within Mathcad can provide you with a result? Optional: How can you depict the results? Can you use a 2D plot or Chart Component to visualize the answer? Find the Mathcad Community Challenge Guidelines here!  

This month's challenge is another geometry-based challenge - but it's non-Euclidean geometry. Given the following three points on a circle of radius 10 units, calculate the area of the spherical triangle: (5.339, 6.948, 4.819) (-4.018, -3.703, 8.375) (6.455, -6.679, -3.705) (Note that the point coordinates are rounded to three decimal places.)   Optional: Can you write a program or function that calculates the area for any three points on the surface? Is there a symbolic evaluation for three generic points (a,b,c), (d,e,f), and (g,h,k)?   Here is a 3D model in Creo 9 of the sphere and points:   Find the Mathcad Community Challenge Guidelines here!   Edit: the coordinates of the second point were incorrect. Wildly incorrect. I have no idea how I wrote down the wrong numbers.

Full list of worksheets   WriteSTL allows Mathcad users to create 3D models mathematically using PTC Mathcad then save them as STL files, perfectly suited for incorporation to CAD assemblies.   Along with the README, the WriteSTL.zip file contains two worksheets, showing 2 different matrix styles possible to generate 3D models. WriteSTL takes an array of triangle vertices. The included PTC Mathcad worksheets demonstrate inline routines to convert each matrix type to triangle vertices arrays.   Also included is the WriteSTL Custom Function compiled and linked for the Windows 7 64-bit platform. The MS Visual Studio project with source is included for anyone needing to build for different Windows Platforms. Microsoft has a free, Express version of Microsoft Visual Studio customers are using to successfully build PTC Mathcad Custom Functions.

Mathcad Contest Idea - January 2022 Plane Truss Mechanics Can you use Mathcad to solve this problem?   This comes from page 88 of “An Introduction to the Mechanics of Solids,” by Stephen H. Crandall, Norman C. Dahl, and Thomas J. Lardner. This was the text for the first mechanical engineering class (2.01 Mechanics) that I took my sophomore year at MIT way back in 1989. You can find the book for as little as $5 on Amazon. It shows three different solutions for the problem, including: closed-form solutions involving equilibrium of forces and the beam-deflection equation a computer program called IBM STRESS Castigliano’s theorem which solves via elastic energy. Any introductory mechanics text or a Schaum’s Outline should guide you to a solution. As with the other contests that will follow this one, the point is not the answer to the problem, but your execution of the solution. Some ideas you may consider including in your worksheet: Allowing the user to change the material via a Combo Box Input Controls. Depicting the results with a Chart Component, such as the truss in the deformed shape, or the deflection at D due to changing input loads. Making the problem more open-ended, such as using matrices and programming for different geometry and loading. Note that these are just ideas; I have not tried any of these. Maybe you can explore different approaches. The problem is simply a starting point. This is an excellent problem for a team to solve, especially for civil and mechanical engineering students. How would you tackle this problem in Mathcad?   Find the Mathcad Community Challenge Guidelines here!  

Hi All – I want to announce a critical bug fix release of PTC Mathcad Prime 4.0. We recently discovered an issue where some password protected areas can become corrupted on save/open. This is an issue we feel important enough to fix in a maintenance release. We’ve investigated the issue, submitted and tested a fix and will be releasing PTC Mathcad Prime 4.0 M010 later today. Anyone using Prime 4.0 F000 should upgrade to Prime 4.0 M010 – we’ll be removing Prime 4.0 F000 from download to make sure only the fixed version is available.   We do our best to avoid situations like this but sometimes bugs happen and when they do, we assess them to understand the impact on users. If they’re critical issues, such as this one, we do our best to fix them as soon as possible.   Many thanks,   Andy.

This is the worksheet corresponding to the blog post Curve Fitting Made Easy.

Let’s face it, planetary gears are cool. They are used in all kinds of mechanisms, including transmissions, motors, and turbines. Your challenge, should you choose to accept it, is to use Mathcad to build a worksheet that calculates the gear ratios and output speeds of a planetary gear under different configurations. The math behind the gear ratios is straightforward. But users should be able to select: The sun or planet carrier as the input; The planet carrier or ring as the output; and, The ring, sun, or planet carrier as the stationary component. How can the user select the desired component? How can you add intelligence to the worksheet to prevent an incorrect combination of input, output, and stationary? What inputs do you want for your calculator? You will have to make some choices. Your choices could include: Number of planets Number of teeth Component diameters Module / pitch Tools that you might consider include Combo boxes, programs, and functions involving strings. Here are some technical references to get you started: KHK Gears Instructables How Stuff Works Once again, this is a great project for students to work on in teams. Make the worksheet as simple or as complicated as you want. Others can build on your work, and you can build on others. Let’s see what the community can create! Good luck!   Find the Mathcad Community Challenge Guidelines here!

Solution: Mathcad Single User and Student Licenses can be transferred by using the link.  Select the version and enter the product code  Enter the new HOST ID onto which the license needs to be transferred - To correctly identify the Host ID on new machine, go to Windows Start > Programs > Accessories > Command Prompt > type ipconfig/all (ENTER) and with the Physical Address below the Ethernet adapter Local Area Connection there stands the Host ID -  Click on #Submit Request Below is the sample email triggered with new HOST ID license file (attachment)    Please save this license file to a secure location on your computer.  

This is the worksheet that corresponds with the blog post Painting Easter Eggs with PTC Mathcad.   Play around with it and paint your own Easter eggs. Be sure to show us what you create!

As a product manager, customer feedback is essential in developing our product. What we do well is nice to hear but what we don’t do well is what drives our thinking when determining what to put in each release. On a recent Pragmatic Marketing course I was introduced to the saying

On April 9, 2024, 11:30 Eastern Time, PTC presented "The Latest in PTC Mathcad Prime 10". During the 28-minute webinar, PTC Mathcad product manager Andy McGough shows the new enhancements coming to Mathcad Prime 10, including Advanced Controls with scripting & choice of solving algorithms. There were also some brief bullet points at what's to come for future Mathcad Prime releases. Mathcad Prime 10 will be available for release and download later by April 23, 2024. Watch the webinar on-demand here!

What's new in PTC Mathcad Prime 9 blog, interview, and webinar. Out now!

This month’s challenge is related to electrical engineering. We have a simple circuit with an electrical potential of 220 Volts. Initially we have a single 10 Ohm resistor. Then we add a second resistor in parallel, with 10% higher resistance. Then we add a third resistor in parallel, with 10% higher resistance than the previous resistor. And so on. Calculate the current in the circuit for the single resistor case. Calculate the resistance of each additional resistor and current through each resistor for 2, 3, 4, 5, and 10 resistors in parallel. Can you write a function or program that calculates the resistance of each resistor and current through each resistor for n resistors in parallel? These calculations are fairly straightforward, so it will be interesting to see what tools – vectors, matrices, loops, plots, charts, etc. – that you use to solve the problem. As always, how you document your calculations is important as your worksheet will be visible to the community. Here is an example of three resistors in parallel, as drawn in Creo Schematics:   Find the Mathcad Community Challenge Guidelines here!

In Mathcad 15.0, we can use the command "Hide Keywords", "Hide left-hand side" and "View Evaluation As > Default, Right shaft, Equal sign" with RMB.But in Mathcad Prime 2.0 we cannot find them again.

This video gives a quick demo on how to configure Mathcad Prime with floating license server.

As mentioned by Brent in a previous blog post, we’re committed to maintaining PTC Mathcad 15.0 for the foreseeable future to enable users who can’t yet migrate to the latest version of Mathcad to continue using the product and receiving support for it. We had a few last minute issues

Creo Parametric 2.0 integration with Mathcad Prime 3.0.     (view in My Videos)

Mathcad Prime 11 world premiere sneak peek + roadmap REPLAY ON-DEMAND!

August 20, 2024 Webcast