We defined the operation of concatenation for sets of strings on p. 10,
ab = { xy | x \i...
Computers and Technology, 18.10.2019 04:10 ohhrs
We defined the operation of concatenation for sets of strings on p. 10,
ab = { xy | x \in a and y \in b }
are the regular sets closed under concatenation? that is, if a and b are regular sets, is ab guaranteed to be a regular set? prove or show a counterexample.
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Computers and Technology, 22.06.2019 01:30
How will you cite information that is common knowledge in your research paper?
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Computers and Technology, 22.06.2019 06:00
Write a function that draws a pool ball. this function should take as parameters, the color, the number that should go on the pool ball, and the location of the center of the pool ball. the radius of the pool balls should be pool_ball_radius, and the font of the number should be pool_ball_font. the text of the pool ball font should be white. drawpoolball(color.orange, 5, 100, 100); drawpoolball(color.green, 6, 50, 200); drawpoolball(color.red, 3, 150, 350); drawpoolball(color.blue, 2, 250, 140); to center the numbers on the pool ball, you should use the getwidth() and getheight() methods. you are allowed to call these methods on your text object, such as txt.
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Computers and Technology, 24.06.2019 00:10
Read each statement below. if the statement describes a peer-to-peer network, put a p next to it. if the statement describes a server-based network, put an s next to it. p - peer-to-peer s - server-based
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Computers and Technology, 24.06.2019 15:30
The idea that, for each pair of devices v and w, thereâs a strict dichotomy between being âin rangeâ or âout of rangeâ is a simplified abstraction. more accurately, thereâs a power decay function f (·) that specifies, for a pair of devices at distance ÎŽ, the signal strength f(ÎŽ) that theyâll be able to achieve on their wireless connection. (weâll assume that f (ÎŽ) decreases with increasing ÎŽ.) we might want to build this into our notion of back-up sets as follows: among the k devices in the back-up set of v, there should be at least one that can be reached with very high signal strength, at least one other that can be reached with moderately high signal strength, and so forth. more concretely, we have values p1 â„ p2 â„ . . â„ pk, so that if the back-up set for v consists of devices at distances d1â€d2â€â€dk,thenweshouldhavef(dj)â„pj foreachj. give an algorithm that determines whether it is possible to choose a back-up set for each device subject to this more detailed condition, still requiring that no device should appear in the back-up set of more than b other devices. again, the algorithm should output the back-up sets themselves, provided they can be found.\
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