This is an archived course. A more recent version may be available at ocw.mit.edu.

Calendar

LEC # TOPICS KEY DATES
I. Complex Algebra and Functions
1 Algebra of Complex Numbers

Complex Plane

Polar Form
 
2 cis(y) = exp(iy)

Powers

Geometric Series
 
3 Functions of Complex Variable

Analyticity
 
4 Cauchy-Riemann Conditions

Harmonic Functions
 
5 Simple Mappings: az+b, z2, √z

Idea of Conformality
 
6 Complex Exponential  
7 Complex Trigonometric and Hyperbolic Functions  
8 Complex Logarithm Problem set 1 due
9 Complex Powers

Inverse Trig. Functions
 
10 Broad Review ... Probably focusing on sin-1z  
II. Complex Integration
11 Contour Integrals  
12 Path Independence  
    Exam 1
13 Cauchy's Integral Theorem  
14 Cauchy's Integral Formula

Higher Derivatives
 
15 Bounds

Liouville's Theorem

Maximum Modulus Principle
 
16 Mean-value Theorems

Fundamental Theorem of Algebra
 
17 Radius of Convergence of Taylor Series Problem set 2 due
III. Residue Calculus
18 Laurent Series  
19 Poles

Essential Singularities

Point at Infinity
 
20 Residue Theorem

Integrals around Unit Circle
 
21 Real Integrals From -∞ to +∞

Conversion to cx Contours
 
22 Ditto ... including Trig. Functions

Jordan's Lemma
 
    Exam 2
23 Singularity on Path of Integration

Principal Values
 
24 Integrals involving Multivalued Functions  
IV. Conformal Mapping
25 Invariance of Laplace's Equation  
26 Conformality again

Inversion Mappings
 
27 Bilinear/Mobius Transformations Problem set 3 due
28 Applications I  
29 Applications II  
V. Fourier Series and Transforms
30 Complex Fourier Series  
31 Oscillating Systems

Periodic Functions
 
32 Questions of Convergence

Scanning Function

Gibbs Phenomenon
 
33 Toward Fourier Transforms  
34 Applications of FTs  
    Exam 3
35 Special Topic: The Magic of FFTs I  
36 Special Topic: The Magic of FFTs II  
  Final Exam