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Intro

Coursera: Calculus Two: Sequences and Series

 with  Jim Fowler
Calculus Two: Sequences and Series is an introduction to sequences, infinite series, convergence tests, and Taylor series. The course emphasizes not just getting answers, but asking the question "why is this true?"

Syllabus

Sequences
Welcome to the course! My name is Jim Fowler, and I am very glad that you are here. In this first module, we introduce the first topic of study: sequences. Briefly, a sequence is an unending list of numbers; since a sequence "goes on forever," it isn't enough to just list a few terms: instead, we usually give a rule or a recursive formula. There are many interesting questions to ask about sequences. One question is whether our list of numbers is getting close to anything in particular; this is the idea behind the limit of a sequence.

Series
In this second module, we introduce the second main topic of study: series. Intuitively, a "series" is what you get when you add up the terms of a sequence, in the order that they are presented. A key example is a "geometric series" like the sum of one-half, one-fourth, one-eighth, one-sixteenth, and so on. We'll be focusing on series for the rest of the course, so if you find things confusing, there is a lot of time to catch up. Let me also warn you that the material may feel rather abstract. If you ever feel lost, let me reassure you by pointing out that the next module will present additional concrete examples.

Convergence Tests
In this third module, we study various convergence tests to determine whether or not a series converges: in particular, we will consider the ratio test, the root test, and the integral test.

Alternating Series
In this fourth module, we consider absolute and conditional convergence, alternating series and the alternating series test, as well as the limit comparison test. In short, this module considers convergence for series with some negative and some positive terms. Up until now, we had been considering series with nonnegative terms; it is much easier to determine convergence when the terms are nonnegative so in this module, when we consider series with both negative and positive terms, there will definitely be some new complications. In a certain sense, this module is the end of "Does it converge?" In the final two modules, we consider power series and Taylor series. Those last two topics will move us away from questions of mere convergence, so if you have been eager for new material, stay tuned!

Power Series
In this fifth module, we study power series. Up until now, we had been considering series one at a time; with power series, we are considering a whole family of series which depend on a parameter x. They are like polynomials, so they are easy to work with. And yet, lots of functions we care about, like e^x, can be represented as power series, so power series bring the relaxed atmosphere of polynomials to the trickier realm of functions like e^x.

Taylor Series
In this last module, we introduce Taylor series. Instead of starting with a power series and finding a nice description of the function it represents, we will start with a function, and try to find a power series for it. There is no guarantee of success! But incredibly, many of our favorite functions will have power series representations. Sometimes dreams come true. Like many dreams, much will be left unsaid. I hope this brief introduction to Taylor series whets your appetite to learn more calculus.

Final
The final exam is your opportunity to demonstrate everything you have learned in our time together. You have nearly reached the end of the course. Let me tell you that it has been my honor and my pleasure to be one of your guides through mathematics. I very much enjoyed putting this course together, and I look forward to more. I hope we will meet again.

9 Student
reviews
Cost Free Online Course (Audit)
Pace Upcoming
Subject Calculus
Institution Ohio State University
Provider Coursera
Language English
Hours 6-8 hours a week
Calendar 7 weeks long
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9 reviews for Coursera's Calculus Two: Sequences and Series

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3 out of 4 people found the following review useful
3 years ago
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Bart completed this course.
When I compare Jim Fowlers course "Calculus Two: Sequences and Series" to Prof Ghrist course "Calculus: Single Variable" (the part that deals with series and sequences), I notice teach the problem completely different even though the content is quite similar. While Ghrist is all about explaining it Read More
When I compare Jim Fowlers course "Calculus Two: Sequences and Series" to Prof Ghrist course "Calculus: Single Variable" (the part that deals with series and sequences), I notice teach the problem completely different even though the content is quite similar.

While Ghrist is all about explaining it once and doing homework for hours to have you master it, Jim Fowler will actually take you by the hand and show you the ropes step by step.

While Ghrist is all about memorizing and allowing few or one attempt to score, Fowler will give you hints all up to the answer in this course and allows you many as many attempts as you'd like.

Since I find it quite a hard topic I'm glad Fowler explained everything so clearly so I could pass Ghrist's course more easily.
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6 months ago
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Mark Oloughlin partially completed this course.
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2 years ago
Ali Badawy is taking this course right now.
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a year ago
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11 months ago
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Francisco Javier Jiménez completed this course.
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2 years ago
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Bill Tollefson partially completed this course.
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2 years ago
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