f (x) d(x)
f (x) (s(x + a) + s(x a)
f (x) s(x + a) + f (x) s(x a)
g(x + a) + g(x a)
(b) Yes, the result depends on a.
With a > x0 , there will be two distinct local extrema associated with the edges at x =
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a) The direct irradiance on plane 1 is E0 cos . A fraction, , of E2 , the total irradiance on
plane 2, is reected. Exactly half of this contributes via inter-reection to E1 , the total
irradiance on plane 1. Thus,
E1 = E0 c
a) The parameter is a (unitless) reectance factor, 0 1, that determines the fraction of
the total irradiance that is reected (as opposed to absorbed or transmitted).
b) The parameter E0 is the irradiance [watts/m2 ], measur
(a) An ideal interpolation kernel reproduces the sampled values exactly. This is true only if
h(0) = 1 and h(i) = 0 for all other integer values i.
(b) Recall that the Fourier transform of the sampled function consists of r
(a) The coefcients of a digital lter designed for differentiation should sum to zero.
Solution: True. Think of a function that is constant. Its derivative is everywhere zero.
This will be true only if the coefcients of the digital lter
For the le thunderbird.png:
(a) See Figure 1a.
(b) Discrete Fourier Transform
(b) Iavg = 183.43996429443359
(c) We convert I to double precision oating point because this is the format numpy (hi
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