MATH
21 B
Mathematics Math21b Spring 2010
Linear Algebra and Differential Equations
FAQ
Course Head: Oliver Knill
Office: SciCtr 434
Send questions of potential general interest to math21b@fas.harvard.edu.

See also the FAQ from previous years: 2008, 2007.

Question:What exactly is the difference between the equations of a damped harmonic oscillator and a driven harmonic oscillator? Answer:
Question:a damped harmonic oscillator is the linear system
 f''(t) + f'(t) + f(t) = 0
 
a driven harmonic oscllator is an oscillator with an inhomogeneous driving like
 f''(t) + f(t) = sin(3t)
 
You can also drive a dampted oscillator
 f''(t) + f'(t) + f(t) = sin(3t)
 
Answer: What are "Kyle numbers"?
Please send questions and comments to math21b@fas.harvard.edu
Math21b (Exam Group 1)| Oliver Knill | Spring 2010 | Department of Mathematics | Faculty of Art and Sciences | Harvard University