Download Logic Functions and Equations: Binary Models for Computer by Christian Posthoff, Bernd Steinbach PDF

By Christian Posthoff, Bernd Steinbach

Logic services and equations are (some of) an important strategies of laptop technological know-how with many purposes akin to Binary Arithmetics, Coding, Complexity, good judgment layout, Programming, desktop structure and synthetic Intelligence. they're quite often studied in a minimal approach ahead of or including their respective purposes. according to our long-time educating adventure, a accomplished presentation of those ideas is given, particularly emphasising an intensive knowing in addition to numerical and computer-based resolution equipment. Any functions and examples from the entire respective components are provided that should be handled in a unified manner. they provide a extensive realizing of the new advancements in computing device technology and are without delay acceptable in expert life.

Logic features and Equations is very steered for a one- or two-semester direction in lots of machine technological know-how or desktop Science-oriented programmes. It permits scholars a simple high-level entry to those tools and permits subtle purposes in lots of various parts. It elegantly bridges the distance among arithmetic and the necessary theoretical foundations of desktop Science.

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Additional resources for Logic Functions and Equations: Binary Models for Computer Science

Example text

We use n = 4 as an example and show the distribution of binary vectors according to their distance from a given vector. The existence of a metric offers numerous possibilities to introduce concepts that are well known in geometry. We explain some of them as an illustration and define others when they are used in some applications. 17. lB. X, EEl Yi 0 0 1 1 1 1 0 0 Yi EEl 0 1 0 1 1 0 1 0 Zi Xi EEl 0 1 0 1 1 0 1 0 Zi (Xi EEl Yi) + (Yi EEl Zi) 0 1 1 2 2 1 1 0 Arrangement of vectors according to the HAMMING-metric h(x,y) (0000) =?

1\ Xn is equal to 1 for Xl = 1, ... ,Xn = 1, for all the other vectors it is equal to O. g. XIX2X3 ... x n ), then the value 0 will be taken for the negated variables, the value 1 for the non-negated variables. U sing the same construction, we can also build disjunctions that will be equal to 0 for one corresponding binary vector, equal to 1 for all the other binary vectors. In general, the relation between binary vectors b = (b l , ... , bn ) E B n and elementary conjunctions and disjunctions (see 41 Logic Functions the next definition) can be expressed in the following way: ffi bl ) (Xn ffi bn) (Xl ffi bl ) V ...

9 A function d from a set S x S into the set R of real numbers is a metric if the following axioms are satisfied (x, y, z E S): DEFINITION Basic Algebraic Structures 1. d(x, y) 2: 0, d(x, x) = 0, if d(x, y) = 2. d(x, y) = d(y, x). 3. d(x,z) S d(x,y) +d(y,z). Note. 31 ° then x = y. The last axiom is the triangular inequality: the" direct way" between x and y is supposed to be the shortest connection, any other point in between extends the distance. When these axioms are satisfied, then (S, d) is a metric space.

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