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no - the 3 values on the right are not all the same. If you chose specific values for i and k and try it out, you'd get 1 if i and k are the same, and 0 if i and k are different. That matches the result you'd get from the summation property: delta(ij)delta(jk) = delta(ik)
Beautifully explained. I have my Classical Mechanics exam tomorrow. If I ace it, I will give you the credits because my teacher is not responding to my messages. Thank you.
Well, there was a question to draw a graph of a function and it higher powers. I went into infinity mode. Couldnt get out of the loop. Anyway, I aced the exam of Mathematical Methods for Physicists without much effort at all.
I like your videos, but the Einstein summation convention is not used like that. You need one covariant index and one contravariant index. Which becomes important when you go to general and special relativity.
Yes, you are completely right. I didn't want to complicate the topic with covariant and contravariant indices. The Einstein summation works just fine for doubly occurring indices, placed no matter how: on top, on the bottom, on the left, on the right or upside down. 😃
Hi i like your videos . Can you please make video on lagrangian , hamiltonian and thier derivation covering all topics(d alemberts priciple, euler's equation).
Support me if you want me to create more theoretical physics videos: ua-cam.com/users/universaldenker-physicsjoin
Do you want to solve every physics problem? Try my eBook!
✅ Contains many useful physics formulas.
✅ Understandable for everyone, because it contains no vectors and integrals.
✅ Formulas are colored and visualized.
✅ Perfect for high school and undergraduate physics students.
Click on the following link to get the book:
en.universaldenker.org/physics-equations-book
This is the best explanation, I didn't understand anything in my 90 minutes course of university but in 10 minutes i totally got it. Thanks 🙏
nice! Thank you for your feedback! :)
Wow. As a German engineering Student i did understand more in this video, than i did, listening to hours of lecture
Appreciate this, this 10 minute video clip is way more better than a 90 minute lecture in college
Thank your very much!
❤
You are such a great teacher, one of a kind.
Ausgezeichnet !
Thank you very much!
Excellent instruction - well presented - complete/concise. Excellent. Thank You.
good intuitive explanation with nice visuals, thanks man
Thank you very much!
Feel free to join the polls I'm doing in the community tab. There you can vote for the next video topic:
ua-cam.com/users/universaldenker-physicscommunity
If you regularly visit my channel and like my videos, I would be happy about 1 x coffee ☕ per month:
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I love your videos!! Keep the good work, you have one of the best real science channels in UA-cam
Thank you very much!
Please make a similar one on Levi-Civita 😢
Love this graphically clear explanation, thank you for putting in so much work
Thank you for your feedback, shashank! 🙂
Nice and clear explanation 👏
Thank you!
감사합니다! Learned the basics of tensor from your lectures. it really helped
Thank you! Glad to hear it!
2:05 isn't it supposed to be 3*delta(ij) delta(jk) bexlcause thezly are added on the right side?
no - the 3 values on the right are not all the same. If you chose specific values for i and k and try it out, you'd get 1 if i and k are the same, and 0 if i and k are different. That matches the result you'd get from the summation property: delta(ij)delta(jk) = delta(ik)
this is just a fancy '1'
Nice video and very helpful and clean editing.
Thank you very much!
Guy took 10 minutes what my professor took weeks to explain. Thanks a lot.
Hehe, I feel you 😅
Love you sir for this video 🤩🤩 i🙏🙏🙏
Beautifully explained. I have my Classical Mechanics exam tomorrow. If I ace it, I will give you the credits because my teacher is not responding to my messages. Thank you.
Thank you! I wish you good luck tomorrow with the exam
@@fufaev-alexander I will not disappoint you!
@@fufaev-alexander you are very welcome!
Well, there was a question to draw a graph of a function and it higher powers. I went into infinity mode. Couldnt get out of the loop. Anyway, I aced the exam of Mathematical Methods for Physicists without much effort at all.
Thank you so much for your explanation!
Thank you for watching! Check out my physics website: en.universaldenker.org :)
Keep up the great work....
Thank you very much!
You got a new subscriber ❤️😁
Thank you!
THANK YOU !
Thank you so much!!!
You're welcome, tee
Great video 📷📸 thank you
Thanks bro!
Hey Matheus, thank you too for the comment!
Sir how to prove rule2 properly?
Is it possible to make a video on variational calculus that we use at multiple places, e.g to get equation of motion and all?
Brilliant!
Thank you very much!
Great methodology
Thank you very much!
Can you do a video on tensor calculus
thanks
damn, this cleared everything!!!!!!!!!!!!!!!
Thank you very much!
Please explain why the rules came so instead of just stating them.
Check out my lesson:
en.universaldenker.org/lessons/202
Is kroneker delta on isotropic tensor
ye
I want to learn the "radical physics"
I like your videos, but the Einstein summation convention is not used like that. You need one covariant index and one contravariant index. Which becomes important when you go to general and special relativity.
Yes, you are completely right. I didn't want to complicate the topic with covariant and contravariant indices. The Einstein summation works just fine for doubly occurring indices, placed no matter how: on top, on the bottom, on the left, on the right or upside down. 😃
Hi i like your videos . Can you please make video on lagrangian , hamiltonian and thier derivation covering all topics(d alemberts priciple, euler's equation).
👌👌
:)
Imagine a 50D vector. :D :D
9:26 haha, bj
😅
You are just so wonder
Thank you! Check out my new physics website: en.universaldenker.org :)