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Green Tea Press: Free Computer Science Books

Green Tea Press: Free Computer Science Books
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"Cannabis Chassidis" Book Party with Yoseph Leib ibn Mardachya, New York City, Sept. 12, 2012 | InterActivist Info Exchange "Cannabis Chassidis: The Ancient and Emerging Torah of Drugs" Book Presentation with author Yoseph Leib ibn Mardachya 7PM, Wednesday, Sept. 12, 2012 Bluestockings Bookstore 172 Allen Street New York City, NY Is marijuana kosher? Is Marijuana Kosher? Yes, of course it is! Join Yoseph Leib on his travels and studies throughout Jerusalem, New York, and Rainbow Country, USA in search of guidance about how Cannabis and psychedelics have and have not been used in both ancient and emerging Chassidic traditions, and what the way we have related to our desires for medicines, gods and intoxicants can teach us about how we relate to ourselves, our community, and our G-d. Chassidis (“kind-ness”) means the way to do all the things we love doing, better, as if any other way was acceptable. But this book is not just for the Jews, or the Stoners. “An enthusiastic and interesting excursion into the psychedelic fringes of hasidic culture.” — Alan Moore, author, V for Vendetta, Watchmen

Classical Text Editor Intro - D Programming Language - Digital Mars “It seems to me that most of the ‘new’ programming languages fall into one of two categories: Those from academia with radical new paradigms and those from large corporations with a focus on RAD and the web. Maybe it’s time for a new language born out of practical experience implementing compilers.” -- Michael “Great, just what I need.. another D in programming.” -- Segfault D is a systems programming language. The D language is statically typed and compiles directly to machine code. It is not governed by a corporate agenda or any overarching theory of programming. There are two versions of the language: D version 2 which is recommended for new projects. D version 1 which is in maintenance mode. There are currently four implementations: Digital Mars dmd for Windows 1.0 2.0 , x86 Linux 1.0 2.0 , Mac OS X 1.0 2.0 , and x86 FreeBSD 1.0 , 2.0 . LLVM D Compiler ldc for D version 1. Gnu D compiler gdc . D.NET compiler alpha for .NET for D version 2.

Birthing the new—making organisations hotbeds of innovation Stanford Encyclopedia of Philosophy Gaussian process Gaussian processes are important in statistical modelling because of properties inherited from the normal. For example, if a random process is modelled as a Gaussian process, the distributions of various derived quantities can be obtained explicitly. Such quantities include: the average value of the process over a range of times; the error in estimating the average using sample values at a small set of times. Definition[edit] Some authors[3] assume the random variables Xt have mean zero; this greatly simplifies calculations without loss of generality and allows the mean square properties of the process to be entirely determined by the covariance function K.[4] Alternative definitions[edit] Alternatively, a process is Gaussian if and only if for every finite set of indices in the index set is Gaussian if and only if, for every finite set of indices , there are real valued with such that The numbers and Covariance functions[edit] Usual covariance functions[edit] Here . have to be for . See also[edit]

Home of Choice Theory - William Glasser Institute Online Etymology Dictionary Perlin noise Perlin noise is a computer-generated visual effect developed by Ken Perlin, who won an Academy Award for Technical Achievement for inventing it. It can be used to simulate elements from nature, and is especially useful in circumstances where computer memory is limited. Uses[edit] Two-dimensional slice through 3D Perlin noise. Development[edit] Perlin noise resulted from the work of Ken Perlin, who developed it at Mathematical Applications Group, Inc. Algorithm[edit] Perlin noise rescaled and added into itself to create fractal noise. Define an n-dimensional grid. In 2001, Ken Perlin created simplex noise, which is similar but uses a simpler space-filling grid, alleviating some problems with Perlin "classic noise", among them, computational complexity. Complexity[edit] When is the number of dimensions, Perlin noise has complexity , while simplex noise has complexity See also[edit] References[edit] Jump up ^ Kerman, Phillip. External links[edit]

Zero-knowledge proof In cryptography, a zero-knowledge proof or zero-knowledge protocol is a method by which one party (the prover) can prove to another party (the verifier) that a given statement is true, without conveying any additional information apart from the fact that the statement is indeed true. For cases where the ability to prove the statement requires some secret information on the part of the prover, the definition implies that the verifier will not be able to prove the statement to anyone else. Notice that the notion only applies if the statement being proven is the fact that the prover has such knowledge (otherwise, the statement would not be proved in zero-knowledge, since at the end of the protocol the verifier would gain the additional information that the prover has knowledge of the required secret information). Abstract example[edit] Peggy randomly takes either path A or B, while Victor waits outside Victor chooses an exit path Peggy reliably appears at the exit Victor names , and such that