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System (2) can be converted to polar coordinates by setting
and
. With respect to
t, differentiate
and
, to obtain

Because equations (6, 7) are partially uncoupled, we can first
deal with (6) in isolation to analyze the behavior of
,
then use our results in equation (7) to examine the amplitude
of the function
.

Contents
Next: Analyzing
for the
Up:A New Look at
Previous: The Airy Equation