Riemann Sums - Left Endpoints and Right Endpoints

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  • เผยแพร่เมื่อ 13 ต.ค. 2024
  • This calculus video tutorial provides a basic introduction into riemann sums. It explains how to approximate the area under the curve using rectangles over a closed interval. It explains how to determine the area of the region using left endpoints and right endpoints. The area under the curve is also equal to the definite integral of the function over the closed interval. The area can be approximated by taking the sum of the area of each rectangle. You can express this using sigma notation and calculate the sum using the appropriate summation formulas. The area of each rectangle is simply the product of the width and the height. The width is delta x and it represents the length of each subinterval. The height of the rectangle is represented by y which is a function of x or simply f(x). The average of the areas using the left and right endpoints is very close to the actual area under the curve. This tutorial contains a few examples and practice problems. The area using left endpoints is an under approximation or lower sum and the area using right endpoints is an over approximation or upper sum when the function is increasing. The upper sum is the higher of the two values and the lower sum is the lower of the two values.
    Antiderivatives:
    • Antiderivatives
    Basic Integration Problems:
    • Basic Integration Prob...
    Indefinite Integral:
    • Indefinite Integral
    Definite Integral:
    • Definite Integral
    Differential Equations:
    • Finding Particular Sol...
    _______________________________
    Properties of Definite Integrals:
    • Properties of Definite...
    Rectilinear Motion Problems:
    • Rectilinear Motion Pro...
    Sigma Notation - Calculus:
    • Summation Formulas and...
    Riemann Sums - Area:
    • Riemann Sums - Left En...
    The Midpoint Rule:
    • Midpoint Rule & Rieman...
    ________________________________
    Finding Area - Limit Definition:
    • Finding The Area Using...
    Definite Integrals - Geometry:
    • Evaluating Definite In...
    Fundamental Theorem - Part 1:
    • Fundamental Theorem of...
    Fundamental Theorem - Part 2:
    • Fundamental Theorem of...
    Net Change Theorem:
    • Net Change Theorem - C...
    __________________________________
    Final Exams and Video Playlists:
    www.video-tuto...
    Full-Length Videos and Worksheets:
    / collections

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  • @TheOrganicChemistryTutor
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    @georgesadler7830 ปีที่แล้ว

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    @Erowens98 2 ปีที่แล้ว

    I noticed that when you double n, the percent error decreases by the square of n. So, 8n is twice as much work as 4n. However 8n's error% is 25% of 4n's error%. So, 8n is 4x as accurate for only twice the work.

  • @remestario
    @remestario 6 ปีที่แล้ว +16

    Can you show an example when the number of rectangles(n) are not given? that's the types of examples i'm doing at class. I seek your enlightenment for this topic, sir organic chemist master sensei.

    • @skinach
      @skinach 5 ปีที่แล้ว +3

      I know this is a year late, but if the number of subintervals isn't given, shouldn't you assume that it's infinity? If the number of intervals is infinity then the way you solve the problem becomes totally different. Either way, if the question doesn't tell you to use riemann sums then it's better both in accuracy and in convenience to just use integrals.

    • @EmpyreanLightASMR
      @EmpyreanLightASMR ปีที่แล้ว

      @@skinach Interesting, your comment is a nice find. Will try to keep this in mind if we're given similar problems (like not being told to use Riemann sums). Just in case.

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    @shelumielmensah9747 3 ปีที่แล้ว

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    @johnbatchler8551 3 ปีที่แล้ว

    Their is a reimann sum equation in geometry book very similar to it. N(n-3)/2. It a diameter of a polygon sides n represent the number of sides in reimman sum terms n(n+1)/2. No college math prof will mention it

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    @em-co2zc 11 หลายเดือนก่อน

    Thank you so much

  • @davidrosenman1889
    @davidrosenman1889 5 หลายเดือนก่อน

    Very good. But why does taking Anti-dervative of function also give U the area❓It doesn't seem to be related to the method of using Rectangles.♦️

  • @poopfart65
    @poopfart65 5 ปีที่แล้ว +9

    This is amazing; just started integration and this video really helps give an intuitive view.

  • @fitnessbeasts_
    @fitnessbeasts_ 10 หลายเดือนก่อน +1

    greetings, the channel membership is way too expensive, especially for people living in third world countries (like me). if you could somehow help us out it would be really great

  • @rafiullahwera1804
    @rafiullahwera1804 ปีที่แล้ว

    Thank you very much ❤

  • @claireschassberger1287
    @claireschassberger1287 3 ปีที่แล้ว +2

    me having a mental breakdown while O Chem. tutor is trying to explain calc to me

  • @cyan5752
    @cyan5752 3 ปีที่แล้ว

    you are a legend

  • @marcusdagostino6208
    @marcusdagostino6208 5 ปีที่แล้ว +9

    thank you homie, bless up

  • @ntokozosikhosana-zj5nr
    @ntokozosikhosana-zj5nr ปีที่แล้ว

    In your first example in calculating the area, why did you use four rectangles?