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

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In this lesson, you will learn what Euler's number is and why it is important in math. We will learn that Euler's number comes from the exponential growth of money when the compounding period is allowed to get very, very small. Euler's number is then used to form the natural exponential function e^x and its inverse, the natural logarithm ln(x). The exponential function is special because it is the only function whose rate of change is equal to the value of the function itself and whose area under the curve is also equal to the value of the function itself.

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  • @jimpringle1634
    @jimpringle16342 жыл бұрын

    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.

  • @maheenmubashir2932

    @maheenmubashir2932

    5 ай бұрын

    E lvxe😢ce ussuit

  • @onkeltschimi6923
    @onkeltschimi69233 жыл бұрын

    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

    2 жыл бұрын

    Hello kindred soul

  • @bad2infinity

    @bad2infinity

    Жыл бұрын

    Ditto...right there w you.

  • @defytyrantsofmississippi2198
    @defytyrantsofmississippi21984 жыл бұрын

    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-hc6pz4 жыл бұрын

    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.

  • @Daniel-OConnell

    @Daniel-OConnell

    3 жыл бұрын

    Me too.

  • @dondonaldson1684
    @dondonaldson16842 жыл бұрын

    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.

  • @user-hs1si2gr4s
    @user-hs1si2gr4s Жыл бұрын

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

  • @deirdreberger1363
    @deirdreberger13634 жыл бұрын

    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.

  • @felixyongco1168
    @felixyongco11682 жыл бұрын

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

  • @thescouselander5531
    @thescouselander55314 жыл бұрын

    One of the best things I've seen on KZread. 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.

  • @mikemullenix6956
    @mikemullenix69563 жыл бұрын

    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.

  • @nicknike79
    @nicknike799 ай бұрын

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

  • @henrychen9707
    @henrychen97072 жыл бұрын

    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

  • @bandreon
    @bandreon3 жыл бұрын

    What a stunning lesson, brilliant in its simplicity!

  • @sebastiansalazar3553
    @sebastiansalazar35534 жыл бұрын

    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.

  • @edvargas3105
    @edvargas31053 жыл бұрын

    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!

  • @hemarajue2736
    @hemarajue27364 жыл бұрын

    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.

  • @MathAndScience

    @MathAndScience

    4 жыл бұрын

    I agree!

  • @harneksingh3207

    @harneksingh3207

    4 жыл бұрын

    many thankd

  • @harneksingh3207

    @harneksingh3207

    4 жыл бұрын

    many thanks

  • @vythinathanduraiswamy3430
    @vythinathanduraiswamy34303 жыл бұрын

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

  • @christophersmith2165
    @christophersmith21654 жыл бұрын

    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.

  • @dennisclapp7527
    @dennisclapp75274 жыл бұрын

    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.

  • @cluelessinky
    @cluelessinky Жыл бұрын

    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

  • @kamalhameedbhatti8281
    @kamalhameedbhatti82812 жыл бұрын

    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.

  • @ottofrank3445
    @ottofrank34452 жыл бұрын

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

  • @lucmarrouche71
    @lucmarrouche714 жыл бұрын

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

  • @tareksaid1623
    @tareksaid1623 Жыл бұрын

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

  • @mohammedhafiz3137
    @mohammedhafiz31375 ай бұрын

    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

  • @DonaldWhiteIII
    @DonaldWhiteIII5 ай бұрын

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

  • @ilkehureyiol1759
    @ilkehureyiol17593 жыл бұрын

    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 жыл бұрын

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

  • @suyashprksh
    @suyashprksh3 жыл бұрын

    KZread 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

  • @Miss_blizzard187
    @Miss_blizzard187 Жыл бұрын

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

  • @pekkagronfors7304
    @pekkagronfors73044 жыл бұрын

    Amazing tutor skills. Thank's.

  • @danielnegussie4894
    @danielnegussie4894 Жыл бұрын

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

  • @jackflash8756
    @jackflash87563 ай бұрын

    Fantastic intuitive , clear and concise video on e.

  • @mathapelongwepe2652
    @mathapelongwepe2652 Жыл бұрын

    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.

  • @MathAndScience

    @MathAndScience

    Жыл бұрын

    Wow, thank you!

  • @roysmith3198
    @roysmith31983 жыл бұрын

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

  • @terencewright2223
    @terencewright22233 жыл бұрын

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

  • @augumentum
    @augumentum8 ай бұрын

    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

    8 ай бұрын

    Awesome story. You are very welcome!

  • @augumentum

    @augumentum

    8 ай бұрын

    @@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?

  • @ganeshjoshi6159
    @ganeshjoshi61594 жыл бұрын

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

  • @alirezanabavian771

    @alirezanabavian771

    2 жыл бұрын

    He took the log and added or multiplied the results

  • @kanitvi514
    @kanitvi514 Жыл бұрын

    Thank you. All your sessions are incredibly brilliant!

  • @MathAndScience

    @MathAndScience

    Жыл бұрын

    Thank you so much!

  • @kaili1094
    @kaili1094 Жыл бұрын

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

  • @williamwelmans8648
    @williamwelmans86483 жыл бұрын

    An excellent lesson! Thanks!

  • @jonnukisan9759
    @jonnukisan97592 жыл бұрын

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

  • @nicanorrocamora794
    @nicanorrocamora7943 жыл бұрын

    Industrious educator ,, a noble passion..

  • @premakoya7939
    @premakoya79393 жыл бұрын

    Beautiful teaching. Thank you

  • @hazelchong5111
    @hazelchong51112 жыл бұрын

    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.

  • @meizhou2107
    @meizhou21073 жыл бұрын

    beautifully done! much appreciated.

  • @marnew1000
    @marnew10002 жыл бұрын

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

  • @pboston6RR
    @pboston6RR Жыл бұрын

    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.

  • @hagosamear4665
    @hagosamear4665 Жыл бұрын

    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.

  • @Jptoutant
    @Jptoutant2 жыл бұрын

    Thank you for another great lesson

  • @bushmanzanigaba3972
    @bushmanzanigaba39722 жыл бұрын

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

  • @sirousmohseni4
    @sirousmohseni43 жыл бұрын

    Another excellent video. Thanks

  • @eduardor7301
    @eduardor73014 жыл бұрын

    Thank you really helpful you lectures

  • @nzarambafelicien9617
    @nzarambafelicien96172 жыл бұрын

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

  • @MathAndScience

    @MathAndScience

    2 жыл бұрын

    Welcome!

  • @renatoberaldo2335
    @renatoberaldo23352 жыл бұрын

    aulas muito boas!!!!! obrigado!!

  • @wellyenas994
    @wellyenas9948 ай бұрын

    Best teacher. Thanks for this. Appreciate your commitment.

  • @wilkyclergeot9416
    @wilkyclergeot9416 Жыл бұрын

    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!!!

  • @stellaginger
    @stellaginger7 ай бұрын

    Thanks a lot for this marvelous lecture !

  • @lazmotron
    @lazmotron9 ай бұрын

    Solid background explanations. Great channel

  • @Saudivlog
    @Saudivlog2 жыл бұрын

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

  • @smzakirhussain7604
    @smzakirhussain7604 Жыл бұрын

    You are the best, Sir!

  • @johnmacmillan627
    @johnmacmillan627 Жыл бұрын

    A real gem! Thank you

  • @manu-jx5nc
    @manu-jx5nc4 жыл бұрын

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

  • @dbharathi2003
    @dbharathi2003 Жыл бұрын

    Awesome and thanks for the tremendous energy

  • @navindraarjunaabeyesekera7864
    @navindraarjunaabeyesekera78642 жыл бұрын

    Superb explanation. Really enjoyed listening to it

  • @lawrenceirvine8759
    @lawrenceirvine87593 жыл бұрын

    Excellent simply excellent. You are passionate about e.

  • @jk3266
    @jk32664 жыл бұрын

    You are a great teacher.

  • @MathAndScience

    @MathAndScience

    4 жыл бұрын

    Thanks so much! So happy you liked it!

  • @rkfm2012
    @rkfm20123 жыл бұрын

    Beautiful teaching ....

  • @bonilsson6349
    @bonilsson63492 ай бұрын

    Wonderful lesson. TANK YOU!

  • @byronfuentes1281
    @byronfuentes12813 жыл бұрын

    Thank you sir this is wonderful education

  • @jeffreychavey4161
    @jeffreychavey41613 жыл бұрын

    Mind-blowing. Thank you

  • @ronaldhofman1726
    @ronaldhofman172611 ай бұрын

    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.

  • @collencekangaso8014
    @collencekangaso80142 жыл бұрын

    Wow what a wonderful explanation

  • @guliyevshahriyar
    @guliyevshahriyar Жыл бұрын

    Very helpful video. Thank you very much.

  • @thandasibisi7534
    @thandasibisi75343 жыл бұрын

    Good stuff.I only learned e when we did Calculus (differential calculus`. Specifically the derivative of a log function.

  • @MavrikSoundsOfficial
    @MavrikSoundsOfficial Жыл бұрын

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

  • @jjsmallpiece9234
    @jjsmallpiece92344 жыл бұрын

    Excellent lesson

  • @sriharitheerthagiri6196
    @sriharitheerthagiri6196 Жыл бұрын

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

  • @pjarina
    @pjarina4 жыл бұрын

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

  • @roberthornbeck3831
    @roberthornbeck38312 жыл бұрын

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

  • @joedasilva134
    @joedasilva1342 жыл бұрын

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

  • @MathAndScience

    @MathAndScience

    2 жыл бұрын

    Thanks!

  • @joedasilva134

    @joedasilva134

    2 жыл бұрын

    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 . 😊😊😊

  • @user-zp7xq9ft1d
    @user-zp7xq9ft1d4 жыл бұрын

    Thanks to explain

  • @halwag
    @halwag Жыл бұрын

    Wish I had your lessons in High school. BRAVO.

  • @chadetrikrout
    @chadetrikrout3 жыл бұрын

    Excellent explanation...

  • @charlesabernathy1543
    @charlesabernathy15433 жыл бұрын

    Awesome. I always until now wonder how Euler got "e". Thanks soooe....much.

  • @sydneydwoskin4950
    @sydneydwoskin49503 жыл бұрын

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

  • @anaeleraph4278

    @anaeleraph4278

    3 жыл бұрын

    Dwoskin stop doing drugs

  • @alfredthepatientxcvi
    @alfredthepatientxcvi2 жыл бұрын

    This is phenomenal :D 😍😍😍😍

  • @tajbibishamim8085
    @tajbibishamim80852 жыл бұрын

    very beautifully explained

  • @chinnachamykrishnasamy2010
    @chinnachamykrishnasamy20103 жыл бұрын

    Very good explanation

  • @mohdsayeduzzaman
    @mohdsayeduzzaman3 жыл бұрын

    Very nice explanation sir.

  • @mnia8917
    @mnia89177 ай бұрын

    Thanks a lot. You are the best. goodluck.

  • @jefferygreene8538
    @jefferygreene85382 жыл бұрын

    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.

  • @kallolbarmon1217
    @kallolbarmon12173 жыл бұрын

    Great. Thank u very much.

  • @nitinbhalla3391
    @nitinbhalla33912 жыл бұрын

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

  • @lprashant7325
    @lprashant73253 жыл бұрын

    Best math teacher ever had

  • @oshafactcheckerexposethepl9245
    @oshafactcheckerexposethepl92452 жыл бұрын

    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.

  • @georgekoerner6591
    @georgekoerner6591 Жыл бұрын

    Beautiful presentation

  • @AlyshaLoveHeart
    @AlyshaLoveHeart3 жыл бұрын

    Thank you sir!!

  • @d34thcom3sripping
    @d34thcom3sripping3 жыл бұрын

    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

    3 жыл бұрын

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

  • @dimorvanerkel2025
    @dimorvanerkel20254 ай бұрын

    Holy smokes man this is what learn from you mister awesomr😂🎉👍🏆wow lots of things are alot clearder now great 🎉

  • @jaydenadam1523
    @jaydenadam15232 жыл бұрын

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