TODAYS TECH

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Thank you all so much. 40,000 of you are here learning MATLAB, Simulink and robotics with me, and this community means everything. ❤️

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12 hours ago |[YT] | 4

TODAYS TECH

Two Methods, One Equation of Motion

Analyzing a spring-mass-damper system with an applied force? There are two classical approaches, and both arrive at the same result.

Lagrangian mechanics derives the equation from energy: kinetic energy, potential energy, and Rayleigh dissipation, combined through the Euler-Lagrange equation.

Newtonian mechanics derives it from forces: a free-body diagram, followed by Newton's second law.

Both yield:
mẍ + cẋ + kx = mg + F(t)

Shifting to the static equilibrium position (x = xₛ + z, kxₛ = mg) removes the gravity term:
mz̈ + cż + kz = F(t)

From here, the standard form follows directly:
z̈ + 2ζωₙż + ωₙ²z = F(t)/m
where ωₙ = √(k/m) and ζ = c/(2√(km)).

For simple systems, the Newtonian approach is often faster. For systems with constraints or multiple degrees of freedom, the Lagrangian approach scales more cleanly, since constraint forces never need to be solved for explicitly.

Which method do you reach for first in your work? Share your thoughts in the comments.
#matlab #robotics #engineering #vibration #math @matlab @mathworks

2 days ago |[YT] | 35

TODAYS TECH

Same double pendulum. Same equations. One method does half the work.

Newton and Lagrange describe the same physics. The difference is how much you carry on the way there.

Newton: forces
Draw a free-body diagram for each mass. Write ΣF = ma in x and y. You end up with 4 equations and 4 unknowns (θ₁, θ₂, T₁, T₂). The tensions are constraint forces you never wanted, so you eliminate them by hand to get the equations of motion.

Lagrange: energy
Pick generalized coordinates (θ₁, θ₂). Write L = T − V. Apply Euler-Lagrange. The constraints are already built into your coordinates, so the tensions never appear.

The insight
Newton asks: what is every force acting on every object?
Lagrange asks: what path does the system take, given its energy?

The first is vector bookkeeping. The second is scalar calculus. That is why Lagrangian mechanics scales to robots, orbits, and field theory, while Newtonian force-balancing gets messy fast.

Why it matters
The double pendulum is chaotic. Change the starting angle by a tiny amount and the trajectories diverge completely. You can’t solve it in closed form, but both methods give you the exact equations to simulate it numerically.

Newton gives you intuition. Lagrange gives you leverage. Learn both, but know which one to reach for.

Which one do you prefer? Comment L or N and defend your choice.

Save this for your next mechanics exam. Share it with someone who still draws free-body diagrams for everything.

#physics #classicalmechanics #lagrangianmechanics #newtonianmechanics #doublependulum #chaostheory #physicsstudent #engineering #mathematics #stem #learnphysics #mechanics

3 days ago |[YT] | 27

TODAYS TECH

You kept asking me: "How do I get really good at MATLAB and Simulink?"

So I put everything I know into one book. 📘

The MATLAB · Simulink · Simscape Project-Based Masterbook is out now.

Inside:
✅ 856 pages, from your first script to advanced simulation
✅ 36 step-by-step projects with full code: robot arms, drones, quadrupeds, motors, mechanisms
✅ 3D animation from beginner to pro
✅ Simscape physical modeling and SolidWorks-to-Simscape import
✅ AI and machine learning projects
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No more jumping between random tutorials. One book, one clear path, real projects you can show.

👉 Grab your copy now : engrprogrammer-shop.fourthwall.com/products/matlab…

1 week ago |[YT] | 12

TODAYS TECH

You kept asking me: "How do I get really good at MATLAB and Simulink?"

So I put everything I know into one book. 📘

The MATLAB · Simulink · Simscape Project-Based Masterbook is out now.

Inside:
✅ 856 pages, from your first script to advanced simulation
✅ 36 step-by-step projects with full code: robot arms, drones, quadrupeds, motors, mechanisms
✅ 3D animation from beginner to pro
✅ Simscape physical modeling and SolidWorks-to-Simscape import
✅ AI and machine learning projects
✅ Install and troubleshooting guide, career roadmap, and more

No more jumping between random tutorials. One book, one clear path, real projects you can show.

👉 Grab your copy now : engrprogrammer-shop.fourthwall.com/products/matlab…

1 week ago |[YT] | 6

TODAYS TECH

You kept asking me: “How do I get really good at MATLAB and Simulink?”

So I put everything I know into one book. 📘

The MATLAB · Simulink · Simscape Project-Based Masterbook is out now!

An 856-page, project-based guide designed to take you from MATLAB fundamentals to advanced engineering simulation, robotics, physical modeling, AI, and professional workflows.

📘 What's included?
MATLAB & Simulink Fundamentals: Programming, simulation mathematics, dynamic system modeling, control design, Stateflow, and model organization.

Simscape & Physical Modeling: Mechanical and electrical systems, motors, power electronics, batteries, thermal systems, and Simscape Multibody.

Control Systems & Robotics: PID, LQR, robot arms, mobile robots, autonomous navigation, drones, quadrupeds, and hexapods.

AI & Machine Learning: Motor fault detection, battery state-of-charge estimation, reinforcement learning, digital twins, and vision-guided robotics.

3D Animation & Visualization: Robot animations, mechanisms, cameras, lighting, video creation, and animated Simulink/Simscape models.

36 Complete Engineering Projects: From inverted pendulums, DC motors, and active suspension to EV powertrains, quadcopters, walking mechanisms, gearboxes, and vibration control.

Advanced Engineering Workflows: Arduino and Raspberry Pi deployment, code generation, testing, estimation, optimization, and custom Simscape components.

95 Ready-Made Projects: Explore the EngrProgrammer project collection for more engineering inspiration.

Career & Learning Resources: A 120-day learning roadmap, portfolio development, certifications, freelancing guidance, troubleshooting, and reference materials.

🚀 Why this masterbook?
No more jumping between random tutorials or struggling to connect theory with practical implementation.

Learn the concepts, understand the engineering mathematics, follow structured projects, study the code, and build simulations you can use to strengthen your skills and engineering portfolio.

Whether you're a student, researcher, robotics enthusiast, or practicing engineer, this book gives you a structured path to keep learning and building.

🛒 Get your copy here:
engrprogrammer-shop.fourthwall.com/products/matlab…

Thank you for being part of the EngrProgrammer community. I hope this resource helps you take your engineering skills to the next level!

Best regards,
Muhammad Mudassir Shakeel
Mechatronics Engineer | EngrProgrammer
MATLAB · Simulink · Simscape · Robotics · Control Systems

P.S. If you're working on a MATLAB, Simulink, robotics, or control systems project, this masterbook is designed to give you plenty of ideas and practical examples to explore.

1 week ago |[YT] | 19

TODAYS TECH

MATLAB, Simulink & Simscape Masterbook | 856 Pages + 36 Real Engineering Projects #matlab #simulink

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engrprogrammer-shop.fourthwall.com/products/matlab…

Stop watching random MATLAB tutorials. Start building real engineering systems.

Introducing the MATLAB, Simulink & Simscape Project-Based Masterbook — an 856-page practical eBook with 36 complete engineering projects, covering robotics, control systems, Simscape, 3D animation, motors, drones, mechanisms, AI and more.

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📖 856-page full-color PDF eBook
🧩 36 step-by-step projects
💻 Complete MATLAB code printed inside the book
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🎬 2D/3D animation techniques
🔗 Showcase of 95 EngrProgrammer projects with direct links
📚 29 chapters + setup guide + project lab guide + 5 reference appendices

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• MATLAB/Simulink learners
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Whether you're learning MATLAB for the first time or want to build advanced robotics and control simulations, this book is designed around learning by building.

By Muhammad Mudassir Shakeel — EngrProgrammer | Todays Tech

#MATLAB #Simulink #Simscape #Robotics #Mechatronics #ControlSystems #Engineering #MATLABProjects #SimscapeMultibody #RoboticsProjects #DroneSimulation #RobotArm #MachineLearning #EngineeringStudents #EngineeringProjects

1 week ago |[YT] | 19

TODAYS TECH

Industrial Automation eBook | PLC, DCS, SIS, Fire & Gas, FAT/SAT & 16 Practical Projects

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✅ 16 Complete Practical Automation Projects
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✅ 65 Automation Interview Questions + Model Answers
✅ Automation Engineer CV Template
✅ Free/Trial Software Setup Guide
✅ 92+ Carefully Selected Learning Resources
✅ Siemens TIA Portal Notes + Vendor-Neutral IEC 61131-3 Programming

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• Elevator Automation
• Batch Mixing System
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• IIoT Dashboard
• Emergency Shutdown System
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🎓 WHO IS THIS FOR?

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📖 384 Pages | 22 Chapters | 16 Projects | 200+ Diagrams

This is more than a PLC programming book — it takes you from automation fundamentals to real industrial project concepts and commissioning practices.

📩 For questions or purchase details, contact me directly.

If you're interested in PLC, industrial automation, DCS, SCADA, instrumentation and control systems, subscribe for more practical engineering projects and tutorials.

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2 weeks ago |[YT] | 19

TODAYS TECH

1 day left, Register now 👇
wa.me/923058695389
#Ansys #cfd #fea

2 months ago |[YT] | 5

TODAYS TECH

⏳ 2 Days Left: Advanced Modern C++ for Robotics & ROS2

August 15 is 2 days away. If you've been meaning to register, this is it.
📅 Starts: August 15, 2026 at 13:00 UTC

📚 8 sessions across 2 months
🎓 Certificate at the end
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Seats are limited and we are not extending the deadline.

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What we'll cover:
🟢 Build Tools & the STL Library
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🟢 Concurrency
🟢 Exception Handling

Every concept is tied back to how it actually shows up in ROS2 codebases: node design, real-time constraints, memory safety, and the kind of production-grade patterns you need when your code is driving hardware, not just passing tests.
If you've already registered, share this with someone who hasn't.
⌨️ Who's joining? Drop a comment below.

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2 months ago |[YT] | 15