14 - What is Euler's Number 'e', Ln(x) - Natural Log & e^x Functions?

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  • เผยแพร่เมื่อ 29 พ.ย. 2024

ความคิดเห็น • 265

  • @jimpringle1634
    @jimpringle1634 2 ปีที่แล้ว +61

    I know how much harder is to teach using this method, and I really appreciate the effort you have put in these lessons. I am an engineer. I have used calculus in my career many times, but I must admit I never really understood it on a gut level. Unfortunately I never had an instructor who took his job as seriously as you. Thank you.

  • @dondonaldson1684
    @dondonaldson1684 2 ปีที่แล้ว +10

    I am an engineer and a keen lover of math. I was blessed to have a calculus teacher that explained this the same way that you did. I was also blessed to have a patient mother who drilled me in math so that I can do many complex calculations in my head by simplifying things back to first principles. My Dad was a mechanic who blessed me with the ingenuity to understand physics by asking questions that came from my curiosity. No wonder when I reached university the concepts of magnetism and electric fields helped me apply science and math to solve engineering problems. My favourite equation is the one you concluded with. e to the i*pi +1=0. It is so neat that the first derivative of the function (slope) is x and is the same as the integral (area under the curve) from - inf to x. Yes, Euler's number is indeed special.

  • @onkeltschimi6923
    @onkeltschimi6923 3 ปีที่แล้ว +83

    Love these lessons. Im an adult that never really did well in school. In todays world its really helping keep up at work by learning from youtube and for maths I highly recommend this guy!! Thanks for creating this content that is free for me👍👍 respect.

    • @edgepixel8467
      @edgepixel8467 3 ปีที่แล้ว +4

      Hello kindred soul

    • @bad2infinity
      @bad2infinity 2 ปีที่แล้ว +2

      Ditto...right there w you.

    • @donaldeaston9564
      @donaldeaston9564 2 หลายเดือนก่อน

      Thank you for calling it MATHS, and not MATH. It’s one thing that grates on me. Destroying my language all for one letter, that Americans seem to have problem with.

    • @_BiologyMatters_
      @_BiologyMatters_ 9 วันที่ผ่านมา

      ​@@donaldeaston9564 Math sounds better, though.

    • @donaldeaston9564
      @donaldeaston9564 8 วันที่ผ่านมา

      @ 😂😂😂😂😂😂

  • @RonFitzgerald-w3i
    @RonFitzgerald-w3i ปีที่แล้ว +3

    This is the finest teaching of maths that I have ever come across. Absolutely compulsive. Dr Ron Fitzgerald

  • @henrychen9707
    @henrychen9707 2 ปีที่แล้ว +1

    Please set this lesson as the standard class and textbook lesson to all the 1st year senior highs kids.
    Now I have gotten it - why has the US been such a great nation? The instructor is the powerful answer!!!! Thank you so much

  • @defytyrantsofmississippi2198
    @defytyrantsofmississippi2198 4 ปีที่แล้ว +23

    Jason your videos have really helped me understand more complex mathematics than I thought I could ever grasp. You truly are a master and 2nd to none at teaching complex mathematical concepts. Thank you so much for what you do.

  • @TrinhNguyen-hc6pz
    @TrinhNguyen-hc6pz 4 ปีที่แล้ว +17

    Nostalgia has brought a sixty something.here and it is quite amazing that something remaining in the dark for nearly half a century suddenly becomes clear, bright and simple. Thank you for your professional effort to simplify a complex subject.

  • @kamalhameedbhatti8281
    @kamalhameedbhatti8281 3 ปีที่แล้ว

    Didn't even noticed that 43 minutes of my life just passed by watching a lesson that had nothing to do with my life *BUT* it was the most interesting thing that I learnt today just for the sake of general knowledge.....thank you......bless you son.

  • @thescouselander5531
    @thescouselander5531 4 ปีที่แล้ว +5

    One of the best things I've seen on TH-cam. I've been using this stuff for years but nobody ever explained how it was derived or the meaning of the number. If only my maths lecturers were this good.

  • @sebastiansalazar3553
    @sebastiansalazar3553 4 ปีที่แล้ว +18

    I received math lessons in my High school Education and in College. I am happy to tell you that your explanation of the Euler's number is the best and simple one I’ve seen. Many thanks for your time.

  • @felixyongco1168
    @felixyongco1168 3 ปีที่แล้ว +2

    Thanks a lot and I am reminded of my days 58 YEARS ago.
    You are such a very , very good teacher.

  • @deirdreberger1363
    @deirdreberger1363 4 ปีที่แล้ว +14

    First off, your videos are excellent. Clear and to the point. Moving between the different whiteboards and using the different colored markers is brilliant. With schools closed, my daughter is watching your videos to finish off her senior year in high school. She will continue with her transition to college. Hopefully schools are open by then.

  • @nicknike79
    @nicknike79 ปีที่แล้ว +1

    I've been looking for this method of teaching math for like 3 years. I literally appreciate the effort.

  • @cluelessinky
    @cluelessinky 2 ปีที่แล้ว

    Wish I had this instructor 60 years ago when I was studying calculus. It took me forever to understand the concept and he made it clear in ten minutes Well done and thank you

  • @mohammedhafiz3137
    @mohammedhafiz3137 10 หลายเดือนก่อน

    Watched this explanation of "e" number first time, Understood it first time.
    Sir you are the Master we should have had in my school days,life would have been quite different.
    Thank you so much. It makes it lot easier for our children to enjoy Maths. Thanks

  • @mikemullenix6956
    @mikemullenix6956 4 ปีที่แล้ว +6

    This is one of the best examples and explanation of e and compound interest I've seen. So important for understanding the magic of compound interest.

  • @edvargas3105
    @edvargas3105 3 ปีที่แล้ว +4

    Brilliant explanation with simple language. I took math courses up to Differential equations and 'e' popped up everywhere, but I did not know why 'e' was so fundamental until now. Thanks a million!

  • @tareksaid1623
    @tareksaid1623 ปีที่แล้ว

    When such explanations are simply done it only means that you master completely mathematics. Great job

  • @pboston6RR
    @pboston6RR 2 ปีที่แล้ว

    Very well done!!!
    I’m 83 years old and remember in a graduate chemistry class the prof was using “e” in his equations and told us it was easy to remember because it was 2.7 Andrew Jackson squared.
    WHAT???
    Andrew Jackson was elected in 1828 so “e” was 2.718281828 .
    But I didn’t appreciate the derivation of “e” until viewin your presentation. Before it was just a number to me. Now it makes sense.
    Oh, and I liked your inclusion of the area under the curve. Very neat!
    Thanks,
    Paul Boston, former chemistry teacher.

  • @bandreon
    @bandreon 3 ปีที่แล้ว +22

    What a stunning lesson, brilliant in its simplicity!

  • @augumentum
    @augumentum ปีที่แล้ว

    I remember receiving a loan in 1983. The banker had no clue how compound interest worked.
    40 years later, I figured it out with your video. Also i calculated from your example n= 1 million
    Wow, it came out to exactly 6 digits of Euler‘s number. Jason, thank you for demystifying this formula. You remind me of my math teacher in high school with your contagious enthusiasm.

    • @MathAndScience
      @MathAndScience  ปีที่แล้ว

      Awesome story. You are very welcome!

    • @augumentum
      @augumentum ปีที่แล้ว

      @@MathAndScience
      Jason, I just watched “09-Unit Circle” a couple of times several days ago. This was the 1st time I have ever heard of a unit circle. You explained it very well. In the 30º, 60º, 90º right triangle the x,y coordinates were ( √3/2,½) . The sine of 30º = ½ (y axis) is permanently etched in my brain with the flashlight analogy . Then √3/2 = x-axis (cos.). Next some calculations were done to understand this more fully.
      √3/ 2 =1.7305/ 2 = .866025. Then the Cos 30º = .866025 on the calculator. This is also true for the Isosceles right triangle at 45º( √2/2). So, being new to the “Unit Circle", I am puzzled!! Why deal with a √3 divided by 2 when 2 clicks of the Construction Master calculator gives the exact same number (.866025 for the cos of 30º)
      Is this because it is easier to remember the simple square roots rather than a 6 digit decimal and plug them into the other 3 quadrants of the circle?

  • @vythinathanduraiswamy3430
    @vythinathanduraiswamy3430 4 ปีที่แล้ว +4

    The origin and importance of 'e' so well explained. You are an incredibly good and passionate teacher! Thank you very much.

  • @lucmarrouche71
    @lucmarrouche71 4 ปีที่แล้ว +5

    This teacher is simply amazing, his lessons are so well designed and easy to follow.

  • @ottofrank3445
    @ottofrank3445 2 ปีที่แล้ว +2

    Sir, you are saving the humanity! What an amazing explanation !

  • @hemarajue2736
    @hemarajue2736 4 ปีที่แล้ว +17

    It seems the Euler's number 'e'
    is an amazing discovery. Thanks, explain it so nicely.
    Curiosity is one of our basic instinct to know or learn(new) things. It is all around us if our mind opens to it. Without the curiosity we barely advance in our life.

  • @danielnegussie4894
    @danielnegussie4894 ปีที่แล้ว

    The best teacher ever. I watch his videos a lot. Very talented person.

  • @dennisclapp7527
    @dennisclapp7527 4 ปีที่แล้ว +3

    Thanks! That is very clear. If all instruction in mathematics were as well done, we would all be less likely to stop trying to get out of going to class.

  • @DonaldWhiteIII
    @DonaldWhiteIII 10 หลายเดือนก่อน

    What a great lesson. Some of the best teaching I have ever seen. The visualization and verbalization was incredible

  • @suyashprksh
    @suyashprksh 3 ปีที่แล้ว

    TH-cam inspires own generation of creativity and budding minds! Thanks! We were about to be misguided but youtube comes to the rescue. Greatest invention of all time

  • @mathapelongwepe2652
    @mathapelongwepe2652 ปีที่แล้ว

    This is the most beautiful mathematical video I've seen this year, thank you. I've just fallen in love with maths and it might change the entire course of my life.

  • @ilkehureyiol1759
    @ilkehureyiol1759 3 ปีที่แล้ว +1

    I can't underestimate how thankful I am to you for this amazing explanation of the Euler's number. It really helped me with my math project. Thank you so much one more time

    • @alirezanabavian771
      @alirezanabavian771 2 ปีที่แล้ว

      He took the log and added the result or multiplied them....

  • @kaili1094
    @kaili1094 2 ปีที่แล้ว

    Another adult here keeps learning, and I really appreciate the clear explanation... I enjoy this lesson every minute.
    Thank you, Sir.

  • @christophersmith2165
    @christophersmith2165 4 ปีที่แล้ว +17

    This was really very interesting. I can see there is such a lot to think about here. I look forward to the next installments. As I do with all the other lessons on your website.

  • @nzarambafelicien9617
    @nzarambafelicien9617 2 ปีที่แล้ว

    Thank you very. The way you explained number e is incredible. None of my teachers was able to explain to me.

  • @wilkyclergeot9416
    @wilkyclergeot9416 ปีที่แล้ว

    I truly considering that incredible teacher is the most famous teacher i've seen in my whole life for real and then thank you so much incredible teacher!!!

  • @DavidRodriguez-er4rq
    @DavidRodriguez-er4rq 2 ปีที่แล้ว

    This lecture was very interesting. This content is on par with Khan academy.

  • @roysmith3198
    @roysmith3198 4 ปีที่แล้ว +3

    I may never in my lifetime use this but it does my soul good to understand how and what it is.

  • @ganeshjoshi6159
    @ganeshjoshi6159 4 ปีที่แล้ว +4

    I can't imagine how euler calculate such powers like 1000 or more.
    Really a great mathematician 🙏

    • @alirezanabavian771
      @alirezanabavian771 2 ปีที่แล้ว

      He took the log and added or multiplied the results

  • @quandarkumtanglehairs4743
    @quandarkumtanglehairs4743 2 หลายเดือนก่อน

    Thank you for this presentation on e, ln(x), and e^ipi+1. This was a great introduction to the special relationships between curves, circles, and limiting changes (thresholds).
    "It would be criminal for me not to!"
    lol I love your passion, dude, that's so invigorating! I'm excited to cover analyses and beginner problems with this topic.

  • @nicanorrocamora794
    @nicanorrocamora794 4 ปีที่แล้ว

    Industrious educator ,, a noble passion..

  • @arturogonzalez6232
    @arturogonzalez6232 3 หลายเดือนก่อน

    Just a minor correction, e^iπ+1=0 (or e^iπ=-1) is not Euler’s formula. This is called Euler’s Identity. Euler’s formula is e^ix= cos (x) + isin(x). Awesome video!

  • @ronaldhofman1726
    @ronaldhofman1726 ปีที่แล้ว

    perfectly explained , i now get the charging formula of a capacitor Uc=Uv* (1-^e^(1/rc)), it's perfect., it 1/rc from the addition to inifinity of what you can get, it maps to your annual growth where it's 1/rc , really love your video's, studyd electronics in the past but learned some stuf out of my head and never got the gut feeling with it m just implemented it.

  • @sriharitheerthagiri
    @sriharitheerthagiri ปีที่แล้ว

    Thank you very much sir..!!! Student from India 🇮🇳❤️🙏

  • @hagosamear4665
    @hagosamear4665 ปีที่แล้ว

    Thank you for the incredible explanation. I have understood the basic concept of e , it’s function and it’s properties which I couldn’t understand it from other books or lectures.

  • @joedasilva134
    @joedasilva134 2 ปีที่แล้ว

    The best explanation on Euler number I have ever had !
    👏👏👏👏

    • @MathAndScience
      @MathAndScience  2 ปีที่แล้ว +1

      Thanks!

    • @joedasilva134
      @joedasilva134 2 ปีที่แล้ว

      I have been binging in all of your videos . Today I covered 3 . They r awesome !!!
      Keep them coming .
      I would love to watch one Riemann Zeta Function .
      Thanks n may the forth b with u .
      😊😊😊

  • @briankelly5828
    @briankelly5828 หลายเดือนก่อน

    I knew this Canadian lumberjack and he wasn't just OK, he was brilliant. His name was simply E because he had a natural logger rhythm.

  • @lprashant7325
    @lprashant7325 4 ปีที่แล้ว

    Best math teacher ever had

  • @jackflash8756
    @jackflash8756 8 หลายเดือนก่อน

    Fantastic intuitive , clear and concise video on e.

  • @MavrikSoundsOfficial
    @MavrikSoundsOfficial 2 ปีที่แล้ว

    JASON I WANT TO GIVE YOU AN INFINITELY LARGE SMOOCH FOR YOUR GENIUS IN TEACHING THESE TOPICS!!! ♥♥♥

  • @kanitvi514
    @kanitvi514 ปีที่แล้ว +1

    Thank you. All your sessions are incredibly brilliant!

  • @bushmanzanigaba3972
    @bushmanzanigaba3972 2 ปีที่แล้ว

    Thank you Jason, you made my life easy. Now I can help my daughter in a very simple method that I learned from you.

  • @nitinbhalla3391
    @nitinbhalla3391 3 ปีที่แล้ว +1

    9:25 - Compound Interest
    20:56 - Continuous Compounding

  • @Miss_blizzard187
    @Miss_blizzard187 ปีที่แล้ว

    Can't express how helpful this was. THANK YOU VERY MUCH!!!

  • @marnew1000
    @marnew1000 2 ปีที่แล้ว

    Superb introduction to a complex topic. love your lessons, you're a brilliant teacher..

  • @commentfromnitya
    @commentfromnitya ปีที่แล้ว

    In the last, the Euler’s formula is beautiful because “how beautifully the irrational numbers pi & e which are hidden in the nature or geometry of the universe are connected to imaginary number i”
    In my opinion, one day this equation will open some big door in science or nature in front of us. Currently it’s like we have the key in hand, but we don’t know yet where is that door?

  • @aram5642
    @aram5642 10 หลายเดือนก่อน

    Well, while thinking about the area under the e^x curve, you still need to keep in mind, that the graph never touches the x axis, so it's still more of a "limit" conceptually.

  • @guliyevshahriyar
    @guliyevshahriyar ปีที่แล้ว

    All students should subscribe to this Foundational Scientific channel, thanks teacher.

  • @manu-jx5nc
    @manu-jx5nc 4 ปีที่แล้ว +7

    Hi, it's a beautiful lesson, well articulated.

  • @gautamroychoudhury2735
    @gautamroychoudhury2735 5 หลายเดือนก่อน

    Sir, who was your teacher or, i should better say, what are the sources that has created your base? Because, you explain the root cause and thus things (maths) no more remains some abstract numbers but, we can relate to real life situations. More i see your videos, your source of knowledge intrigues me more and more. Regards

  • @sydneydwoskin4950
    @sydneydwoskin4950 3 ปีที่แล้ว +6

    "what we call, in advanced math, the limit..." omg i think i blushed. i was like....I DO ADVANCED MATH!???!?!!??!

  • @redsix5165
    @redsix5165 ปีที่แล้ว

    15:57 You are not getting 2.25 because the interest will compound in the second period. You need to find the effective 6m rate to make this math work

  • @halwag
    @halwag 2 ปีที่แล้ว

    Wish I had your lessons in High school. BRAVO.

  • @oshafactcheckerexposethepl9245
    @oshafactcheckerexposethepl9245 2 ปีที่แล้ว

    Narutal log of 2, or 'e' is a great number. I like to play with '1/e' or .36787... this to me would be the experiential growth rate of the speed of light as the gravitational effects change as it moves from objects or towards an object in relation to it's distance. So as lights hits Murcery it moved a shorter distance but took longer to escape the pull of the sun gravity, but as it passes Murcery heading to Earth it speeds up.

  • @wellyenas994
    @wellyenas994 ปีที่แล้ว

    Best teacher. Thanks for this. Appreciate your commitment.

  • @Davionious
    @Davionious 4 หลายเดือนก่อน

    There is a trick here: Banks quote annual interest rates but they compound interest on your min/max daily or monthly balance. Because of this formula it is misleading to say 10% pa interest compounded monthly unless you mean the interest rate is that, which if you compounded it monthly, would produce 10% pa interest. That rate is not 10% / 12 = 0.8333...% but (1+10%)^(1/12) -1 = 0.797414...%

  • @jefferygreene8538
    @jefferygreene8538 3 ปีที่แล้ว +1

    Euler number was used in the movie “Hidden Figures” when changing from a elliptical to parabolic orbit for NASA space capsule to return to earth.

  • @JavierBonillaC
    @JavierBonillaC 10 หลายเดือนก่อน

    I think it would be worth while to answer “why does in converge to 2.72?” The exponent is getting bigger so that should give you a large result. Nevertheless what you are adding to the one in the parenthesis is getting smaller and smaller. So, if you compound every nanosecond the compounding is great, but what is being compounded becomes neglectible beyond a certain value. It does grow, but you will see the growth very very far to the right of the period in 2.7182…….

  • @hazelchong5111
    @hazelchong5111 2 ปีที่แล้ว

    Thank you so much for wanting to help us understand how the Euler's number come from. very interesting.
    Thank you for all your vids.

  • @roberthornbeck3831
    @roberthornbeck3831 2 ปีที่แล้ว

    Love this presentation. I wish someone had done this for me in High School, before tech/eng school. Iam retired but enjoy math.

  • @boomersooner535
    @boomersooner535 4 ปีที่แล้ว +2

    I'm glad I bought your dvds years ago to help this project

  • @smzakirhussain7604
    @smzakirhussain7604 2 ปีที่แล้ว

    You are the best, Sir!

  • @navindraarjunaabeyesekera7864
    @navindraarjunaabeyesekera7864 2 ปีที่แล้ว

    Superb explanation. Really enjoyed listening to it

  • @georgekoerner6591
    @georgekoerner6591 2 ปีที่แล้ว

    Beautiful presentation

  • @kamalhameedbhatti8281
    @kamalhameedbhatti8281 3 ปีที่แล้ว

    WOW......never thought mathematics was so interesting.

  • @jk3266
    @jk3266 4 ปีที่แล้ว +2

    You are a great teacher.

    • @MathAndScience
      @MathAndScience  4 ปีที่แล้ว +1

      Thanks so much! So happy you liked it!

  • @pekkagronfors7304
    @pekkagronfors7304 4 ปีที่แล้ว +2

    Amazing tutor skills. Thank's.

  • @Saudivlog
    @Saudivlog 3 ปีที่แล้ว

    You are a great teacher. Your explanation 👌 is very clear and interesting.

  • @lazmotron
    @lazmotron ปีที่แล้ว

    Solid background explanations. Great channel

  • @jonnuki
    @jonnuki 2 ปีที่แล้ว

    fascinating! Always wondered about that mysterious e on the calculator - very logical teaching - thank you

  • @johnmacmillan627
    @johnmacmillan627 ปีที่แล้ว

    A real gem! Thank you

  • @paganimarker1898
    @paganimarker1898 ปีที่แล้ว

    what amazing explenation
    can you explain lke that and for Trigonometry???

    • @MathAndScience
      @MathAndScience  ปีที่แล้ว

      Yes! Look for my trig videos it’s all there

  • @kulasekhararaogooty553
    @kulasekhararaogooty553 หลายเดือนก่อน

    Wonderfully explained.

  • @NeriusFernando
    @NeriusFernando 2 หลายเดือนก่อน

    Very good lesson to every one thank you

  • @wonkyu1qlee66
    @wonkyu1qlee66 2 ปีที่แล้ว

    five-star lecture !

  • @syedmuhammadabdullah2920
    @syedmuhammadabdullah2920 6 วันที่ผ่านมา

    The main lecture starts at 9:40

  • @stellaginger
    @stellaginger ปีที่แล้ว

    Thanks a lot for this marvelous lecture !

  • @terencewright2223
    @terencewright2223 3 ปีที่แล้ว

    Fascinating video , so brilliantly explained.Excellent video,thank you.

  • @lawrenceirvine8759
    @lawrenceirvine8759 4 ปีที่แล้ว

    Excellent simply excellent. You are passionate about e.

  • @d34thcom3sripping
    @d34thcom3sripping 4 ปีที่แล้ว

    dude, you're the best. MORE, ALWAYS MORE. i just wish I could pick you're brain. also, you should have a Saturday morning science show; you'd save our youth.

    • @MathAndScience
      @MathAndScience  4 ปีที่แล้ว

      Wow thanks so much! I’m trying to do my part!

  • @davidgari3240
    @davidgari3240 ปีที่แล้ว

    Yelp review: e ^ - lazy 8 * (what the ...)
    Love the term "negative infinity" SO MUCH.

  • @mohamadfazli5575
    @mohamadfazli5575 2 ปีที่แล้ว

    Hi please answer me ...how did you changed the % to decimal ? I divide the % by 100. To change 100% to decimal will be 100% divide by 100 = 1 not 0.001 ? How did you get 0.001 ?

  • @hoangthuytien5494
    @hoangthuytien5494 2 ปีที่แล้ว

    omg it just blow my mind, i feel incredible

  • @commentfromnitya
    @commentfromnitya ปีที่แล้ว

    Great learning for beginners. Though i also comes from geometry just as we step into complex plane

  • @byronfuentes1281
    @byronfuentes1281 4 ปีที่แล้ว

    Interest on money caught my attention thank you sir

  • @Gracinda80
    @Gracinda80 ปีที่แล้ว

    Can we write ln x as 1/e to the x?

  • @jaydenadam1523
    @jaydenadam1523 2 ปีที่แล้ว

    Thank you so much! May I just know that is Euler some gradient curve for exponential curve? Hopefully someone replies, thank you

  • @chinnachamykrishnasamy2010
    @chinnachamykrishnasamy2010 4 ปีที่แล้ว

    Very good explanation

  • @collencekangaso8014
    @collencekangaso8014 3 ปีที่แล้ว

    Wow what a wonderful explanation

  • @louisbatshone4754
    @louisbatshone4754 ปีที่แล้ว

    Best tutor thank you

  • @pjarina
    @pjarina 4 ปีที่แล้ว +1

    It also works using google sheets FV function graphed line chart.