Chapter 16 Vector Calculus - San Dieguito Union High...

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Chapter 16 Vector Calculus 16-1 & 16-5 Vector Fields, Curl, and Divergence 16-2 Line Integrals 16-3 The Fundamental Theorem for Line Integrals 16-4 Green’s Theorem 16-6 Parametric Surfaces 16-7 Surface Integrals 16-9 The Divergence Theorem 16-8 Stokes’s Theorem 16-10 Summary The following notes are for the Calculus D (SDSU Math 252) classes I teach at Torrey Pines High School. I wrote and modified these notes over several semesters. The explanations are my own; however, I borrowed several examples and diagrams from the textbooks* my classes used while I taught the course. Over time, I have changed some examples and have forgotten which ones came from which sources. Also, I have chosen to keep the notes in my own handwriting rather than type to maintain their informality and to avoid the tedious task of typing so many formulas, equations, and diagrams. These notes are free for use by my current and former students. If other calculus students and teachers find these notes useful, I would be happy to know that my work was helpful. - Abby Brown SDUHSD Abby Brown Calculus III/D SDSU Math 252 www.abbymath.com San Diego, CA * , 6th & 4th editions, James Stewart, ©2007 & 1999 Brooks/Cole Publishing Company, ISBN 0-495-01166-5 & 0-534-36298-2. (Chapter, section, page, and formula numbers refer to the 6th edition of this text.) , 5th edition, Roland E. Larson, Robert P. Hostetler, & Bruce H. Edwards, Calculus: Early Transcendentals *Calculus ©1994 D. C. Heath and Company, ISBN 0-669-35335-3. Name: ___________________________________ www.abbymath.com - Ch. 16 Page 1 of 31

Transcript of Chapter 16 Vector Calculus - San Dieguito Union High...

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Chapter 16Vector Calculus

16-1 & 16-5 Vector Fields, Curl, and Divergence16-2 Line Integrals16-3 The Fundamental Theorem for Line Integrals16-4 Green’s Theorem16-6 Parametric Surfaces16-7 Surface Integrals16-9 The Divergence Theorem16-8 Stokes’s Theorem16-10 Summary

The following notes are for the Calculus D (SDSU Math 252)classes I teach at Torrey Pines High School. I wrote andmodified these notes over several semesters. Theexplanations are my own; however, I borrowed severalexamples and diagrams from the textbooks* my classes usedwhile I taught the course. Over time, I have changed someexamples and have forgotten which ones came from whichsources. Also, I have chosen to keep the notes in my ownhandwriting rather than type to maintain their informalityand to avoid the tedious task of typing so many formulas,equations, and diagrams. These notes are free for use by mycurrent and former students. If other calculus students andteachers find these notes useful, I would be happy to knowthat my work was helpful. - Abby Brown

SDUHSD

Abby Brown

Calculus III/DSDSU Math 252

www.abbymath.comSan Diego, CA

* , 6th & 4th editions, James Stewart, ©2007 & 1999Brooks/Cole Publishing Company, ISBN 0-495-01166-5 & 0-534-36298-2.(Chapter, section, page, and formula numbers refer to the 6th edition of this text.)

, 5th edition, Roland E. Larson, Robert P. Hostetler, & Bruce H. Edwards,

Calculus: Early Transcendentals

*Calculus ©1994D. C. Heath and Company, ISBN 0-669-35335-3.

Name: ___________________________________ www.abbymath.com - Ch. 16

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www.abbymath.comAbby Brown ~ 11/2003

d ds t dtd dS G dA

r T rS N= = ′= = ∇

( )

T rr

N

=′′

=∇∇

( )( )tt

GG

Integration SummaryScalar Functions

interval length = arc length = “curtain” area or mass = dxa

bz A f dxa

b= z s ds

C= z f ds

Cz surface area = mass of surface lamina =A dA

R

= zz V f dAR

= zz S dSS

= zz f dSSzz

mass Note: Integral represents “mass” if f is a density function.∫∫∫=E

dVV ∫∫∫=E

dVf

Vector Functionswork flux

∫∫

∫∫

←++=

′⋅=

⋅=

⋅=

C

b

a

C

C

dzRdyQdxP

dtt

ds

d

)(rF

TF

rF = ⋅

= ⋅

= ⋅∇

= ⋅ × ←

zzzzzzzz

F S

F N

F

F r r

d

dS

G dA

dA

S

S

R

u vD

( ) parametric form

Elements of Integration

dA = dy dx, r dr d2, du dvdV = dz dy dx, r dz dr d2, D2sinN dD dN d2

ds t dt x t y t z t dt

dS G dA g x y g x y dA z g x y G x y z z g x y

dA u vx y

u v

= ′ = ′ + ′ + ′

= ∇ = + + = = −

= × ←

r

r r r

( ) [ ( )] [ ( )] [ ( )]

[ ( , )] [ ( , )] ( , ) ( , , ) ( , )

( , )

2 2 2

2 2 1

where and

where is given by parametric formS

C F Conservative(› a potential function f such that F=Lf) Not Conservative

Closed F r⋅ =z dC

0 Note: Green’s, Stokes’s, andFundamental Theorem alsoapply in this case.

Green’s Theorem (2D) Stokes’s Theorem (3D)

∫∫∫ ∂∂

−∂∂

=⋅R

CdA

yP

xQdrF ∫ ∫∫ ⋅=⋅

CS

dd SFcurlrF

NotClosed

Fundamental Theorem of Line Integrals

F r⋅ =z d f x b y b z bC

( ( ), ( ), ( ))

F r F r⋅ = ⋅ ′z zd t dt

Ca

b( )

Complete the line integral

If S is closed: Divergence Theorem ∫∫∫∫∫ =⋅ES

dVd FSF div

differential form

−= ∇

f x a y a z af

( ( ), ( ), ( ))where F

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