Andrew Nicoll
Andrew Nicoll
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Відео

The Wavelet Transform for Beginners
Переглядів 174 тис.4 роки тому
In future videos we will focus on my research based around signal denoising using wavelet transforms. In this video we will cover: - Fourier Transform 0:25 - Short-Time Fourier Transform 1:00 - Wavelet Transform 6:47 - Discrete Wavelet Transform 11:32 - Multilevel Decomposition 12:25
Modular Arithmetic Around a Circle in Python
Переглядів 2,9 тис.4 роки тому
An adaptation of my code can be found here: github.com/GedToon/python-code
Deriving the Electric Field of a Dipole
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Deriving the Electric Field of a Dipole
Green's Theorem: Proof - Part 2
Переглядів 1,7 тис.7 років тому
Part 2 of proving Green's Theorem. Later in the series, we will look at some examples using Green's Theorem. It will also be useful for when we look at the divergence theorem.
Green's Theorem: Proof - Part 1
Переглядів 7 тис.7 років тому
Part 1 of proving Green's Theorem. Later in the series we will use Green's theorem in applications and examples.
(Levi-cevita symbol) Proving that the divergence of a curl and the curl of a gradient are zero
Переглядів 28 тис.7 років тому
This is the second video on proving these two equations. And I assure you, there are no confusions this time
Introduction to Dissipative forces - Power functions and damped pendulums
Переглядів 1,8 тис.7 років тому
The first video in a series about dissipative and generalized forces.
Equations of motion of a pendulum attached to a mass on a spring
Переглядів 7 тис.7 років тому
Equations of motion of a pendulum attached to a mass on a spring
Derivation of Gauss' Law from scratch using the inverse square law and the divergence theorem
Переглядів 1,7 тис.7 років тому
Derivation of Gauss' Law from scratch using the inverse square law and the divergence theorem
The quantum harmonic oscillator (part 2) - Finding the wave functions of excited states
Переглядів 8 тис.7 років тому
In the second video out of 3 in this series, we solve for the exact wave function for the ground state. I then introduce Hermite polynomials which are used to find the first and second excited states. By the end of the video, I will show you an animation by St. Andrews University looking at the different wave functions and probability distributions. In the next video I will introduce the matrix...
The quantum harmonic oscillator: Solving the differential equation for the ground state
Переглядів 2,8 тис.7 років тому
Watch part 2 where we normalise the wave function and solve for A.
The quantum harmonic oscillator (Part 1) - Finding the eigenstates, eigenvalues and wave fucntions
Переглядів 12 тис.7 років тому
This is the first video in my series on the quantum harmonic oscillator. Today we use the creation and annihilation operators to help us derive the formula for all the energy states or eigenvalues for the oscillator. Then using some clever techniques and advanced calculus, we then find the eigenstates and the corresponding wave functions from scratch. In the next video we will carry on with the...
Proving "the cancellation of dots" equation
Переглядів 4,5 тис.7 років тому
We used this cool equation in deriving the Euler-Lagrange equations of motion. Why not go back and watch it to see how it helped solve the problem.
Proof of Snell's law using Fermat's Principle and the Euler-Lagrange equation
Переглядів 20 тис.8 років тому
In this video we prove Snell's law using Fermat's principle which states that light travels on the shortest path between two points. Therefore, we are able to bring in the Euler-Lagrange equation at the end to finish it all up.
Differential equations: The integrating factor
Переглядів 1148 років тому
Differential equations: The integrating factor
Finding the volume of a cube using integration techniques
Переглядів 17 тис.8 років тому
Finding the volume of a cube using integration techniques
Integrating parametric equations to find the area.
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Integrating parametric equations to find the area.
Gauss' law for electric fields part 1 - The basics
Переглядів 1868 років тому
Gauss' law for electric fields part 1 - The basics
Particles and potential steps: E-v(0) - Particle is reflected even though it has enough energy. - p
Переглядів 1,8 тис.8 років тому
Particles and potential steps: E-v(0) - Particle is reflected even though it has enough energy. - p
Reflection and transmission coefficients
Переглядів 4,7 тис.8 років тому
Reflection and transmission coefficients
Particles and potential steps: E-v(0) - part 2
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Particles and potential steps: E-v(0) - part 2
particles and potential steps: E greater than V
Переглядів 10 тис.8 років тому
particles and potential steps: E greater than V
Symmetric square well potentials
Переглядів 2 тис.8 років тому
Symmetric square well potentials
Particle in an infinite square well (part 5)
Переглядів 1148 років тому
Particle in an infinite square well (part 5)
Particle in an infinite square well (part 4)
Переглядів 1088 років тому
Particle in an infinite square well (part 4)
Particle in an infinite square well (part 3) (cut short)
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Particle in an infinite square well (part 3) (cut short)
Particle in an infinite square well (part 2)
Переглядів 3248 років тому
Particle in an infinite square well (part 2)
Particle in an infinite square well (part 1)
Переглядів 3418 років тому
Particle in an infinite square well (part 1)
Deriving the time-independent Schrödinger equation
Переглядів 1,2 тис.8 років тому
Deriving the time-independent Schrödinger equation

КОМЕНТАРІ

  • @kaobob4663
    @kaobob4663 16 днів тому

    this is actually vey helpfil

  • @user-qp9so1by1j
    @user-qp9so1by1j 25 днів тому

    Wow amazing video! Thank you! <3

  • @MireyaGriese
    @MireyaGriese Місяць тому

    Great content, as always! Just a quick off-topic question: I have a SafePal wallet with USDT, and I have the seed phrase. (alarm fetch churn bridge exercise tape speak race clerk couch crater letter). What's the best way to send them to Binance?

  • @30Hours-YZY
    @30Hours-YZY Місяць тому

    interesting

  • @manfredbogner9799
    @manfredbogner9799 Місяць тому

    Sehr gut Danke

  • @SampleroftheMultiverse
    @SampleroftheMultiverse 2 місяці тому

    I get a u shape wave in my mechanical model of a quantum wave function. I also hear all wave function are consider before next phase change. Are wave functions various frequencies?

  • @Nur_Md._Mohiuddin_Chy._Toha
    @Nur_Md._Mohiuddin_Chy._Toha 3 місяці тому

    👍👍👍

  • @joso5681
    @joso5681 3 місяці тому

    Thanks a lot for this video!

  • @panjak323
    @panjak323 3 місяці тому

    Umm why not just overlap the FFT windows in time ?

  • @guliyevshahriyar
    @guliyevshahriyar 4 місяці тому

    Dear professor, I have to write this tutorial is phenomenal! Thanks a ton!

  • @TymexComputing
    @TymexComputing 4 місяці тому

    a vectangle ;)

  • @Annina-ug8iw
    @Annina-ug8iw 6 місяців тому

    amazing video, perfect for quick repetition before the exam 💫

  • @SobhanMohammadi-li8ws
    @SobhanMohammadi-li8ws 6 місяців тому

    a very informative and super efficient introduction.

  • @alephnull8377
    @alephnull8377 6 місяців тому

    What is momentum?

  • @homakashefiamiri3749
    @homakashefiamiri3749 6 місяців тому

    It was a great tutorial of Wavelet Transform. Thank you so much

  • @eonasjohn
    @eonasjohn 7 місяців тому

    Interesting.

  • @gerardomorales5181
    @gerardomorales5181 8 місяців тому

    Amazing proof! Greetings from Mexico!

  • @bronzefanpage8256
    @bronzefanpage8256 9 місяців тому

    Im interested in physics, currently 14, should i buy these? Which one, there are four of them on amazon. Which would be a good starter? Are there any others for beginners like me?

    • @2.zef.758
      @2.zef.758 6 місяців тому

      Start with Classical Mechanics.

    • @bronzefanpage8256
      @bronzefanpage8256 5 місяців тому

      @@2.zef.758 thanks, loving it!

  • @opticalmouse2
    @opticalmouse2 9 місяців тому

    Why no comments?

  • @AminaAmina-by4oh
    @AminaAmina-by4oh 9 місяців тому

    سلام عليكم استاذ ممكن سؤال!

    • @AndrewNicoll
      @AndrewNicoll 9 місяців тому

      !نعم

    • @AminaAmina-by4oh
      @AminaAmina-by4oh 9 місяців тому

      @@AndrewNicoll هل يمكنك ارسال بريدك الالكتروني لأشرح سؤالي لك من فضلك

  • @yablaker
    @yablaker 9 місяців тому

    Great content and explanation! Finally understood the wavelets via the stft! Only had to set the speed to 1.5x and if you added 3b1b-style visualization it’d gonna be a bomb!

  • @uRealReels
    @uRealReels 10 місяців тому

    great video. where is the net video on ecg processing

  • @Xoaditi-i5k
    @Xoaditi-i5k 10 місяців тому

    Thanku for this video. I prepared for my exams and this helps me sooo much thankuuuu

  • @student4A5
    @student4A5 10 місяців тому

    Sir,could you please explain what is frequency resolution and time resolution?

  • @bilalmasud2288
    @bilalmasud2288 10 місяців тому

    On minute 5.15 the slide shown has an error; Hamiltonian has "N=adagger a" NOT "N=a adagger". I plan to include detailed significance of the correct normal order "N=adagger a" in my own video titled "(Charge Violating?) Particle Creation and Annihilation in Quantum Mechanics" to be uploaded soon on my channel ua-cam.com/channels/Qn5EexW-K8CzG4EdlijAFw.html. Meanwhile, you can see any good quantum mechanics book to see the correct lef-right order of a and adagger in any good book on quantum mechanics. (Dr.Bilal Masud, D. Phil. Oxford University, England.)

  • @darciosabbadini8869
    @darciosabbadini8869 11 місяців тому

    convolution

  • @tomitomi7941
    @tomitomi7941 Рік тому

    Thank you

  • @陈伟伟-c5r
    @陈伟伟-c5r Рік тому

    very good video, make my brain rotation. like from China

  • @PEEPU21
    @PEEPU21 Рік тому

    Thnx

  • @ozymandias9925
    @ozymandias9925 Рік тому

    Pero ponele la música de Oppenheimer 😅

  • @DRibic
    @DRibic Рік тому

    I hated in the beginning, like Fourier again, I'm here for wavelets, but it is actually great, it all now fits in for me, and now I understand STFT despite it sounded exotic. The video is not flashy, even worse black letters on white screen, but it does great job, explanation is just great!

  • @srfoundries3307
    @srfoundries3307 Рік тому

    Can you also derive Newton's law of gravitation without using kepler's law ?

  • @srfoundries3307
    @srfoundries3307 Рік тому

    Can you derive Kepler's law without using Newton's law of gravitation and second law of motion ?

  • @pacotaco1246
    @pacotaco1246 Рік тому

    This was great review! Thanks for uploading!

  • @adithyabharath2608
    @adithyabharath2608 Рік тому

    Thank you make more like these please

  • @helawlodar9070
    @helawlodar9070 Рік тому

    omg thank you soooo much!

  • @A_Black_hoodie
    @A_Black_hoodie Рік тому

    Do you need to know calculus to buy this book

    • @Morax___
      @Morax___ Рік тому

      There is a old saying that if you don't understand calculus you won't be able to understand any kind of physics

    • @hansisbrucker813
      @hansisbrucker813 6 місяців тому

      No, just just need some money 😜

  • @kearneydeng4318
    @kearneydeng4318 Рік тому

    It's very intuitive, that helps a lot. Thank you for your work!

  • @hannaharnfelser1028
    @hannaharnfelser1028 Рік тому

    I struggled with this all semester long to find out its so simple omg Great video tho

  • @ritikchaudhari6066
    @ritikchaudhari6066 Рік тому

    very goood explanason , i bhery muchh appre c ate this thanku

  • @amrithagk4477
    @amrithagk4477 Рік тому

    Amazing explanation! Thank you

  • @Cyberpunkstyle
    @Cyberpunkstyle Рік тому

    Hi what’s the age require for these books

    • @AndrewNicoll
      @AndrewNicoll Рік тому

      I read them when I was 15. So I'm sure you could master them easily. You only really need to know basic calculus :)

    • @merajchowdhury6022
      @merajchowdhury6022 Рік тому

      @@AndrewNicoll do you have any resources to master calculus

    • @arctikvg3693
      @arctikvg3693 Рік тому

      @@merajchowdhury6022I recommend Lamar’s lecture notes for the basics and then get yourself Calculus by Michael Spivak

    • @A_Black_hoodie
      @A_Black_hoodie Рік тому

      ​@@merajchowdhury6022you can use youtube

    • @abdullahaboelyas4300
      @abdullahaboelyas4300 3 місяці тому

      ​@@merajchowdhury6022 Krista King courses on Udemy

  • @amandaandrade7777
    @amandaandrade7777 Рік тому

    THANK YOU! I'm going to have proof of calculus 3 and needed a clear proof of Green's theorem from Stokes's, but I couldn't find anything in my country (Brazil). Thank you very much, I will perform the steps in reverse and do them in the test

  • @ikervillanuagarcia8461
    @ikervillanuagarcia8461 Рік тому

    Superb explanation mate, simple and straight to the point!

  • @xaisthoj
    @xaisthoj Рік тому

    Finally got it.🎉

  • @musef7883
    @musef7883 Рік тому

    5:55 "2 + 5 = 1 + 6 therefore 2 = 1 and 5 = 6" this is exactly your argument lol

    • @ventyh4244
      @ventyh4244 2 місяці тому

      Nah his argument is more like: 2 + x = 2 + y therefore x = y 😅

  • @bayestraat
    @bayestraat Рік тому

    Marvellous! I've been somewhat using an almost-wavelet transform for years without even knowing it lol. Thats because I've always been working on financial econometrics without any engineering background. When I first started, my friends who were working as QC engineers for a propellor manufacturer introduced to me a concept where I could model the cyclic components of the data not just by using variance and correlations, but more importantly, accurately modelling the durations of the periodic cycles. They explained how they can identify defects of enclosed, rotating parts without ever opening them up, and they would be correct every single time. Though, I wasn't really interested in the engineering part because I was too affixed on the concept. So I've been using a complex series of functions in python to do recursive FFT and Laplace transforms at different sliding intervals to capture time-frequency and time-resonance information for time series forecasting. I've always overlooked topics about wavelets without actually knowing how significantly they relate to me. Today, it was totally worth it to look into this subject as this will make my work so much easier. Thanks, whoever you are, keep it up!

  • @granttaylor3697
    @granttaylor3697 Рік тому

    Yes, I need find out more about the use of Wavelet transform, for analog video signal processing, but I need to find a simple cut down way of doing this.

  • @ShaliniShukla-i7c
    @ShaliniShukla-i7c Рік тому

    thank u so much for this informative video

  • @maciejglinski6564
    @maciejglinski6564 Рік тому

    Wonderfully explained! thanks