Kronecker Delta

00:00 What is the Kronecker Delta good for?
00:30 Definition and Examples
01:39 Einstein's Summation convention
02:40 Property #1: Kronecker is symmetric
03:16 Property #2: Index contraction
04:56 Property #3: Index transfer
05:42 Property #4: Equal indices summation
06:26 Scalar product with Kronecker delta

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[AmirRezaee-nqhy]

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 🙏

[yc]

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[Takkodachs]

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[Mikey-mike]

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Ausgezeichnet !

[dastin]

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[Jon_]

good intuitive explanation with nice visuals, thanks man

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[shashanks.k]

Love this graphically clear explanation, thank you for putting in so much work

[Krishnanjan_Sil]

Please make a similar one on Levi-Civita 😢

[KodxQ]

Guy took 10 minutes what my professor took weeks to explain. Thanks a lot.

[shee_eesh]

감사합니다! Learned the basics of tensor from your lectures. it really helped

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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.

[CEMHanuragIIT]

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[marcosconceicao]

Thank you so much for your explanation!

[Mahdi.alkawaz]

Danke!
Ist das der Anfang einer Serie?

[BrickBreaker]

I want to learn the "radical physics"

[RahulSharma-ocqd]

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?

[abhinuyadav]

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).

[manusebastian]

Please explain why the rules came so instead of just stating them.