Session 78: Computing the Length of a Curve

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Overview

To find the length of a curve we break it up into infinitesimal pieces. Each piece is approximately a straight line segment; we use differential notation to compute and sum the lengths of these pieces.

Lecture Video and Notes

Video Excerpts

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» Clip 1: Introduction to Arc Length (00:09:00)

» Accompanying Notes (PDF)

From Lecture 31 of 18.01 Single Variable Calculus, Fall 2006

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» Clip 2: Example: y=mx (00:03:00)

» Accompanying Notes (PDF)

From Lecture 31 of 18.01 Single Variable Calculus, Fall 2006

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» Clip 3: Example: Circular Arc (00:07:00)

» Accompanying Notes (PDF)

From Lecture 31 of 18.01 Single Variable Calculus, Fall 2006

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» Clip 4: Example: Length of a Parabola (00:06:00)

» Accompanying Notes (PDF)

From Lecture 31 of 18.01 Single Variable Calculus, Fall 2006

Recitation Video

 

Arc Length of y=x3/2

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Worked Example

 

Arc Length of y=ln(x)

 

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