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PCM Physics Chemistry Mathematics
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Since 2013
Notes that help you get unstuck faster
Handwritten notes, class slides, formula sheets, and design coursework from BITS Pilani and Parsons School of Design. Shared openly so the next student can spend less time searching and more time understanding.
Open access
Free to browse, read, and download
Mixed disciplines
Engineering, design, business, humanities
Engineering
Communication Systems
Engineering
Control Systems
Engineering
Digital Image Processing
Engineering
Digital Signal Processing
Humanities
Introduction to Finance & Accounts
Engineering
Microprocessors & Interfacing
Engineering
Number Theory
Engineering
Optimization Methods
Engineering
Analog & Digital VLSI Design
Engineering
Communication Systems
Engineering
Control Systems
Engineering
Digital Image Processing
Engineering
Digital Signal Processing
Humanities
Introduction to Finance & Accounts
Engineering
Microprocessors & Interfacing
Engineering
Number Theory
Engineering
Optimization Methods
Engineering
Analog & Digital VLSI Design
Engineering
COMSOL Multiphysics Tutorials
Engineering
Control Systems — MATLAB Lab
Engineering
Digital Image Processing — MATLAB Lab
Engineering
DSP — MATLAB Lab Notes
Engineering
Microprocessors — Lab Notes
Engineering
Modern Control Systems
Engineering
Number Theory (Ronak Sumbaly Notes)
Engineering
Walsh-Hadamard Transform Shortcut
Engineering
Communication Networks
Engineering
COMSOL Multiphysics Tutorials
Engineering
Control Systems — MATLAB Lab
Engineering
Digital Image Processing — MATLAB Lab
Engineering
DSP — MATLAB Lab Notes
Engineering
Microprocessors — Lab Notes
Engineering
Modern Control Systems
Engineering
Number Theory (Ronak Sumbaly Notes)
Engineering
Walsh-Hadamard Transform Shortcut
Engineering
Communication Networks
Every Day Since 2013
Someone, somewhere, is studying from these notes right now.
"At least one person in the world has opened these notes every single day since 2013. That's not a metric — it's a responsibility I take seriously."
— Akshansh Chaudhary, creator
12+
years of notes
70+
subjects covered
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always and forever
Collector's View
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Study Paths
Follow a thread instead of scanning the whole shelf
These are quiet entry points into the library: grouped note sequences that make sense together, without removing the freedom to browse on your own.
Start with the systems that shaped the original library: signal flow, electronics, and control. This path moves from fundamentals to the kinds of technical subjects that reward repeated study.
A path through visual thinking, computational experiments, and motion. These notes track the shift from technical rigor to expressive systems and form-making.
A compact route through the Parsons-era studio and theory work. Follow this if you want to see how the design research thread deepened across courses and experiments.
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FAQ
Common Questions
Where do these notes come from?
These are handwritten lecture notes, lab notes, and study guides created by Akshansh Chaudhary across BITS Pilani, Dubai Campus (2011–2015) and Parsons School of Design (MFA period). They represent years of classroom learning, exam prep, studio exploration, and personal study.
Are the notes free to download?
Yes — completely free, no sign-up required. They have always been free and will always remain so. The goal is to make quality study material accessible to every student.
Can I use them for my own studying?
Absolutely. These notes are meant to be used as supplementary material alongside your own textbooks and classes. Many students use them for quick revision, understanding concepts differently, or filling in gaps.
Are the notes still relevant?
Core engineering concepts in electromagnetics, digital design, signal processing, and control systems are largely timeless. The notes may not cover the absolute latest developments in fast-moving fields, but the fundamentals they teach remain solid and widely taught.
What's the copyright situation?
The notes are original works by Akshansh Chaudhary. You are welcome to use them for personal study. Please do not redistribute or republish them without permission. If you'd like to share them, link to this page.
Can I suggest corrections or contribute?
Yes! If you spot an error or want to contribute notes for a subject not covered here, reach out at akshansh@hey.com. Every contribution helps the next student who will study from these.
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New notes added regularly.
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