Boolean type

Most of the time consuming tasks rely on very fast Boolean type (binary, such as OR, AND, etc.) operations, which makes it feasible to run on inexpensive and widely accessible personal computers. 

The safety program data are processed redundantly, fnfact, 16 rednndantbits are used. Diversity is achieved through the use of controls in the telegrams and the use of additional data in data blocks and parameters. The safety parameters are therefore stmctured in a data element (of Boolean type) and an additional element (of word... 

Lua has eight basic types of values nil, Boolean, number, string, function, userdata, thread and table. The type nil is that of the reserved work nil and usually represents the absence of a useful value, for example the value of an unassigned variable. A Boolean type has only the two values false and true. The types... 

Answers from aH of these searches contain CAS Registry Numbers. Answer sets may be combined, using the Boolean operators AND, OR, or NOT, with other answer sets or with text terms, such as names or molecular formulas. Any answer set also may be used to define subsets of the file for subsequent stmcture searching. Answer sets of up to 10,000 Registry Numbers from any type of search in this file may also be used as search terms in other files, such as the CA or CAOLD files (53). 

Coordinate Indexing and Boolean Logic. Three methods of indexing have been prominent in the chemical Hterature in recent times. The first, articulated indexing, has been used in printed Chemicaly hstracts subject indexes from their earliest days until well into the 1990s. A number of important concepts are identified as permissible index entries, including specific compounds, material types, reactions, and processes. One or more modifying statements foUow each basic index entry. Thus, eg. 

In the earliest days of on-line databases, all three indexing types coUapsed into the third. Using older manual tools, it was difficult to coordinate more than two or three concepts, but the computer made that easier. Each concept in a search can be represented by a string of synonyms or alternatives, and searching can be done for two such parameters or more. Thus, Boolean logic expressions can easily be constmcted as follows ... 

Full-Text Patent Databases. The LEXPAT database on the LEXIS— NEXIS system, the first commercially available full-text patent file, receives its greatest use from patent attorneys and has been relatively unused by other patent information speciaUsts. This may be attributed to search software that is quite different from the type familiar to information speciaUsts, no matter what their preferred host system. This situation has changed with dialog s release of the PATEULL files followed by STN s USPATEULL, both searchable by familiar Boolean techniques and featuring greater... 

Logical—Data type w ith only two possible values True (represented as 1) and False (represented as 0), also referred to as Boolean. 

Real—Predefined scalar type, decimal, or scientific notation may be used. Boolean—Predefined logical type, ordered so that false < true. 

Less than or equal Any scalar type Boolean... 

SleD53 Slepian, D. On the number of symmetry types of boolean functions of n variables. Canad. J. Math. 5 (1953) 185-193. 

The characterization of operating steps, i.e., the characterization of the operators, depends on (1) the type of operation (i.e.. Boolean,... 

The Boolean XOR function. Two straight lines are required to divide the area into regions that contain only one type of point. 

Then, a set of cell types are defined each nonempty cell will contain a joint and between zero and five beams. The beams will extend in directions n, 3ir/4, n/2, n/4, and 0, labeled g0 through g4, respectively. Conversion from Boolean gene values to an integer is accomplished through the following equation ... 

These constraints simply navigate parameterized attributes we could use the more conventional syntax a < b instead of a.isLessThan(b). Thus, a predefined type Date has a parameterized attribute < (Date) Boolean, which yields true or false for any given compared date. 

Then the assignQualified invariant corresponds to the following Boolean function, which should evaluate to true upon completion of any external operation invocation. Note that the code form is the same as that of the type model invariant, with each reference to an attribute in the type model expanded to its corresponding representation in the implementation. 

In the Catalysis interpretation, the states in a state chart are Boolean conditions and the transitions are actions. As such, actions may take time there is a gap between one state going false and the next state lighting up (rather like the floor indicator in many elevators).9 Most state charts focus on a given type, and the states are defined in terms of its attributes. 

This is a common form of specification for exceptions, so we introduce a convenient query isException on the predefined type Boolean and rewrite it as... 

Sometimes you can make an equality-like relation that seems reasonable for all sub-types. For example, we could define equality for shapes of ary form by assuming they all have some Boolean contains(p Point), as follows ... 

The primitive types that we use in every model and design—Boolean, arithmetic, sets, lists, and dictionaries—can be defined in basic packages that are imported by all others. These types are most easily defined in an axiomatic style—that is, by simply stating a number of fundamental facts (axioms, mathematicians call them) that are true about the types, from which other facts follow. For example, the package defining Boolean operators contains the propositions shown in Figure 9.46. 

Components are instantiated in the same way as types are instantiated in a postcondition by using ComponentType.new. Consider an operation that causes a component to permanently invert the value of a Boolean output property. 

A static invariant is a condition that should always be true, at least between the executions of any action that forms part of the same model. As a Boolean, it is composed of comparisons between pairs of objects. They might be < or = comparisons between numbers or other scalars or more-complex comparisons defined over more-substantial types or identity comparisons (whether one object is the same object as another). 

For each state, define an invariant that relates it to other attributes in the type model. States are boolean attributes, and can be parameterized just like attributes. 

Identify a type with interesting states and transitions. Some don t have any. Any boolean attributes are candidates for states. Similarly, if you have optional attributes or associations, there are frequently states in which those attributes must be defined. Some continuous attributes may have values that signify a qualitative change in behavior e.g. speed > 75mph may qualify as a speeding state. Look also for radical differences in behavior — eg, can be lent or not and for equivalent manual system stages or phases or temporary tags or marks or locations of an item or piece of paperwork. E.g. Book on shelves or held at desk or with member. E.g. hotel reservation in future folder or today pile. 

Collection( T) Collections whose members all belong to type T. In the following expressions, c, c2 Collection e T P T -> Boolean func T ->Object. 

The CD-ROM version of the data base can be efficiently searched with a menu-driven type of software called Search Express. It allows one to search with Boolean expressions as well as individual words and/or frequency of hits as a function of the number of documents retrieved on a given topic. Numerous searchable fields have been included, allowing one to retrieve information by a variety of means, for example, the compound name the chemical registry number, the amount of material released into the air, water, or land the location of the site of release and the SIC code of the releasing party. One can also employ ranging methods with available numeric fields and sorting of output. 

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