by Anónimo · Labor. Biblioteca Juvenil, 24. · tapa dura · ISBN 9788433542243
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«El caballo de ébano y otros cuentos de Las mil y una noches» is a selection of tales by an anonymous author, published by Labor in hardcover (123 pages).
A selection of stories from One Thousand and One Nights, headed by the tale that gives the volume its title: an ebony horse with magical powers that carries its rider through the air. The rest of the stories preserve the atmosphere of adventure and fantasy typical of the Arab tradition.
Volume 24 of Labor's Biblioteca Juvenil collection, with illustrations by M.ª Ángeles Tomás; second edition.
For young readers and for those who want to approach the classic tales of One Thousand and One Nights in an illustrated edition.
In computational complexity theory, the class NC (for "Nick's Class") is the set of decision problems decidable in polylogarithmic time on a parallel computer with a polynomial number of processors. In other words, a problem with input size n is in NC if there exist constants c and k such that it can be solved in time O((log n)c) using O(nk) parallel processors. Stephen Cook coined the name "Nick's class" after Nick Pippenger, who had done extensive research on circuits with polylogarithmic depth and polynomial size. As in the case of circuit complexity theory, usually the class has an extra constraint that the circuit family must be uniform (see below).
