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2015-01-22 Lecture 2
Reading: Chapter 5, up to page 192.Sections 5.7 – 5.9 will not be on the homework or exams, but will be part ofthe assigned reading.
Functional relationships between several variables will be a major theme throughout the course. Today wewill look at the cases of two variables and threevariables.
Three variables: a, b and c
Example: Work out derivatives for c = a^2 + b^2
Two variables: a and b. We have da/db = 1/(db/da)
Example: Work out derivatives for b = tan(a)
We apply this to x(t) and t(x), one-dimensional motion in U(x)
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