HP F2226A - 48GII Graphic Calculator User Manual page 471

Graphing calculator
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β
g
(
θ
)
∫∫
∫ ∫
φ
(
,
θ
)
=
φ
(
,
θ
)
θ
r
dA
r
rdrd
α
f
(
θ
)
R
'
where the region R' in polar coordinates is R' = {α < θ < β, f(θ) < r < g(θ)}.
Double integrals in polar coordinates can be entered in the calculator, making
sure that the Jacobian |J| = r is included in the integrand. The following is an
example of a double integral calculated in polar coordinates, shown step-by-
step:
Page 14-10

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