Written By Cat McClintock
  • 11/8/2016

Three Favorite Engineering Calculation Worksheets

A few weeks ago, we posted an article listing some of the essential engineering calculation worksheets for beginners getting started with Mathcad. But you can find many, many more in our worksheet collections available online. Whether you’re working in physics, electrical engineering, or statistics, there are worksheets that can help make your day-to-day calculations easier, error-free, and readable.

In fact, we offer so many worksheets, you might feel overwhelmed and miss out on some hidden gems.

That’s why we asked Iulia Savu, one of our Mathcad experts for help finding some of the most interesting and useful worksheets among the hundreds available. Based in Bucharest, Iulia Savu is a PTC Mathcad Application Engineer who conducts product demonstration and answering technical questions for customers and partners. If you’re ready to explore what else is out there, she suggests that you take a look at these three gems:


Iulia Savu is a Mathcad and engineering calculation software expert based out of Bucharest, Romania.

Mathcad Application Engineer, Iulia Savu

Magnification of an Image

Magnification of an Image uses the same theory and demonstrations you learn in the light and optics physics class, says Savu.

“You've probably looked through a magnifying glass, so you know that objects can appear larger or smaller,” she says. “This worksheet demonstrates what happens when a light reflected off an object passes through a converging lens”

You can find the worksheet in the User Community, or in the PTC Mathcad free worksheets, Topics in Physics, Chapter 11-4


An optical path illustrated in Mathcad's Magnification of an Image worksheet.


The Magnification of an Image worksheet in Mathcad helps you calculate and diagram the path of a light source through a convex lens.


Modeling the Ocean

“Another worksheet that impresses me is ‘Modelling the Ocean’,” says Savu. “When watching the ocean, it's obvious that the sea is not a single sinusoidal wave but a combination of many waves with different speeds, amplitudes, directions, and wavelengths. It seems that the sea surface evolves almost randomly when looking at a specific point of the ocean.”

The Ocean worksheet helps you model those complicated waveforms by presenting the ocean as a sum of simple sinusoidal waves with different heights, lengths, and directions,” she says.


You can find the worksheet in the User Community, or in the PTC Mathcad free worksheets, in the Oil and Gas category.


Mathcad calculates waves in the Modeling the Ocean worksheet

Modeling the Ocean worksheet calculates natural-looking waves by multiple waves at once.


 Missile Drag Brake

“You can use the Missile Drag Brake worksheet to calculate the resultant force and the sectional area of one drag brake for a missile,” says Savu.

Using the barometric formula, the worksheet models how the air pressure changes with altitude and displays a graphic that shows how the drag force depends on the area.

Rocket from sample worksheet, Missile Drag Brake, used in Mathcad

Use the missile drag brake worksheet to calculate the resultant force and the sectional area of one drag brake for a missile.

See the worksheet in action here.

Finding Answers with Mathcad

Mathcad is engineering math software that helps you perform, analyze, and share all your most vital calculations. Engineers at ground-breaking companies use it, and now you can try your own free-for life-version and see what this powerful math software can do for you. Download PTC Mathcad Express today.

Download PTC Mathcad Express free

About the Author

Cat McClintock edits the Creo and Mathcad blogs for PTC.  She has been a writer and editor for 15+ years,  working for CAD, PDM, ERP, and CRM software companies. Prior to that, she edited science journals for an academic publisher and aligned optical assemblies for a medical device manufacturer. She holds degrees in Technical Journalism, Classics, and Electro-Optics. She loves talking to PTC customers and learning about the interesting work they're doing and the innovative ways they use the software.