Syntaxes useful

The syntax used for locations is described in section 3.5 of the FT. The most frequently used location types are... 

Notice that the Join keyword is not used, but rather just a comma separates the two tables being joined. The Join condition becomes a part of the where clause. The former syntax using the Join keyword will be used in examples throughout this book. 

Network Protocol Description of the rules and syntax used for computer networking software. 

Scheme 6 Syntax used to dynamically create a new HTML document derived from user-specified JavaScript variables...

The ROSDAL syntax is characterized by a simple coding of a chemical structure using alphanumeric symbols which can easily be learned by a chemist [14]. In the linear structure representation, each atom of the structure is arbitrarily assigned a unique number, except for the hydrogen atoms. Carbon atoms are shown in the notation only by digits. The other types of atoms carry, in addition, their atomic symbol. In order to describe the bonds between atoms, bond symbols are inserted between the atom numbers. Branches are marked and separated from the other parts of the code by commas [15, 16] (Figure 2-9). The ROSDAL linear notation is rmambiguous but not unique. 

The first line of the connection table, called the counts line (see Figure 2-21), specifies how many atoms constitute the molecule represented by this file, how many bonds arc within the molecule, whether this molecule is chiral (1 in the chiral flag entry) or not, etc. The last-but-onc entry (number of additional properties) is no longer supported and is always set to 999. The last entry specifics the version of the Ctab format used in the current file. In the ease analyzed it is V2000". There is also a newer V3000 format, called the Extended Connection Table, which uses a different syntax for describing atoms and bonds [50. Because it is still not widely used, it is not covered here. 

As this short example shows. PDB files use different syntax for different records and both writing and reading such files require much effort. Another problem is the extensibility of this format to handle new kinds of information, which further complicates the file structure. The Protein Data Bank has been faced with the consequences - the existing legacy data comply with several different PDB formats, so they are not uniform and they arc more difEcuh to handle (145, 155, 157]. As mentioned in Section 2,9.7.1, there is a much more flexible and general way of representing molecular structure codes and associated information - the STAR file format and the file formats based on it. 

The syntax and semantics of the typing rules in a chem.rul file are included in the HyperChem Reference Manual. The following example illustrates their use. The five AMBER types for oxygen atoms shown above are defined in chem.rul by the following rules ... 

When we want to take an element from a set it is simply a matter of using the correct syntax. For example, as we discussedbefore, to take the fifth element from the dataset we... 

Mathematica hasthisfunctionandmanyothersbuiltintoitssetof "add-on" packagesthatare standardwiththesoftware.Tousethemweloadthepackage "Statistics NormalDistribution The syntax for these functions is straightforward we specify the mean and the standard deviation in the normal distribution, and then we use this in the probability distribution function (PDF) along with the variable to be so distributed. The rest of the code is self-evident. 

The other syntax for supplying molecular structures to Gaussian 94 is the Z-matrix. A Z-matrix specifies the locations of and bonds between atoms using bond lengths, bond angles, and dihedral (torsion) angles. 

It is beyond the scope of this chapter to explain the syntax and semantics of first-order predicate logic, and the reader is referred to Lloyd s text (1987) for a general introduction. However, it is useful to provide some details on the horn clause form. 

Primary molybdenum ores at a relatively coarse grind go through an initial stage of flotation. At Climax Molybdenum, for example, the first separation is made at 35% + 100 mesh. The flotation system uses vapour oil as a promoter and pine oil as frother. A sulfonated coconut oil (syntax) is added to the system to emulsify the oil. 

Check the SAS procedure syntax to see if there is an output data set that will provide you with the values you need. The output data sets from the SAS procedures are usually friendlier to use than the ODS OUTPUT data sets. 

The colon operator is very useful when we make longer vectors for plotting or calculations. With this syntax, the increment is squeezed between the beginning and ending values of... 

MATLAB is object-oriented. Linear time-invariant (LTI) models are handled as objects. Functions use these objects as arguments. In classical control, LTI objects include transfer functions in polynomial form or in pole-zero form. The LTI-oriented syntax allows us to better organize our problem solving we no longer have to work with individual polynomials that we can only identify as numerators and denominators. 

We will use this syntax extensively starting in Session 3. Here, we see how the object-oriented syntax can make the functions tf2zp o and zp2tf() redundant and obsolete. 

We are using the typical structure syntax, but MATLAB also supports the set to perform the same task. 

Following the above observations, the process model can be formulated by TA. For formal definitions of the syntax and semantics of TA, see [15]. TA are used to model the individual resources by resource automata and to describe timing constraints by place automata. The former are used to start and to finish tasks which are uniquely assigned to resources, the latter establish timing constraints of places. 

In this appendix, we illustrate how E-Z Solve may be used for each of these types of problems. We expand on the basic features of E-Z Solve described in the Help and Help/tutorial menus in the software. The file Appendix.msp in the E-Z Solve software contains the equations used to solve examples D-l to D-4 which follow. The main elements of the syntax are also printed within this appendix. 

This latter differential equation, coupled with the algebraic expression relating qout to h, may be solved to determine the fluid height as a function of time. The initial fluid height is 50.93 m, based upon the specified initial fluid volume and tank diameter. This serves as the initial condition to be used for the integration. The E-Z Solve syntax is ... 

The riant and fj-ateeq functions must be used for cases in which an analytical solution to the governing equation is not available, rkint is a standalone Runge-Kutta integration routine which may be imported and used for other problems of this type. The function f-ruteeq contains the expression to be integrated it may be edited as required for the problem at hand. The form of f-ruteeq is shown in the E-Z Solve Syntax, above. 

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. 

Well-written postconditions can be used as the basis for verification and testing. For this purpose, we should write the postconditions in a more precise style as test (Boolean) functions. You can use the Boolean expression part of your favorite programming language we will use a general syntax from UML called Object Constraint Language (OCL). It translates readily to most programming languages but is more convenient for specification. 

Judiciously chosen auxiliary attributes like this one can be quite effective in simplifying actions and invariants by introducing precisely defined terms that express the requirement in a natural way that s close to what a client might use (despite the formal syntax). 

Perhaps we should have used a markedly different syntax. 

This is not the same thing as a state chart showing how different orderings actually result in achieving different abstract actions. The actions of a collaboration may have many possible sequences in which they can sensibly be used, but each abstract action consists of only certain combinations of them. For example, there are many combinations in which it makes sense to press the keys of a UNIX terminal. The keystrokes and the responses you get on the screen are a collaboration. But there is a more abstract collaboration in which the actions are the UNIX commands. To form any one of these commands, you press the keys in a certain sequence given by the syntax of the shell language. The overall sensible-sequences state chart is more permissive than the state chart that realizes any one abstract command. 

It is a central tenet of our approach that every picture should be translatable into text-based statements, not because you d ever want to but because that gives it a clear and unambiguous meaning. For the same reason, the text-based notation we use can be translated into a small core syntax. Notice that this is more than a claim to have a clear syntax It is an unambiguous semantics. So the names, definitions, and statements of a package1 really carry all the information we will discuss in the rest of this section. 

To use the template, draw a type using the name of the template package (this is also the name of the primary template type, which the type drawn implicitly substitutes). Place the template parameters in the UML inset dashed box or show them as explicit textual substitutions7 in the form shown in Figure 9.30. Either one is equivalent to drawing the syntax shown in Figure 9.31. (In C++, the equivalent would be roughly SortedList < Banana, shorterThan>.)... 

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