Conditional statements

This style of fuzzy conditional statement is often called a Mamdani -type rule, after Mamdani (1976) who first used it in a fuzzy rulebase to control steam plant. 

Conditional statements—Change the sequence in which instructions are executed depending upon the logical relationship(s) between variables and/ or between variable(s) and set value(s). 

The iterative statement in FORTRAN is the DO statement (although others may be constructed using conditional statements and GOTOs), where... 

Conditional statements may be nested with other conditional statements and/ or with iterative statements. They are ... 

It is noteworthy to point out that this procedure, necessary to determine if an atom pair is significantly interacting, prohibits easy and straightforward vectorization of the program, because an index, required for a conditional statement, must be looked up in a d-dimensional table, where usually d-3. Performance characteristics are discussed below. 

Used in conditional statements when the limiting value given is correct within... 

For a conditional IF-THEN or IF-THEN-ELSE construction we can state the Rules of Conditional Statements ... 

This program contains an example of conditional statements. A conditional variable DISK is defined such that if DISK = 1 then the bursting disk is intact, and if DISK = 0 the disk has burst. The discharge velocity through the disk varies with pressure as given by the complex conditional statement in the partial listing below ... 

Use a conditional statement to simulate the effect of a shock load on the system i.e., change the value of Sin for a short time and follow the resulting variations in the value of S. 

In general the IF-THEN-ELSE conditional statement form is used, combined with the inequality and/or possibilities as found in the HELP. This can involve a switching from one equation to another within this statement. Another way is to use flags or constants that take values of 0 or 1 and are multiplied by terms in the equations to achieve the desired results. The programs RUN and RELUY contain such programming. As shown in RUN, nesting of multiple IF statements is possible ... 

It is also helpful to include conditions in a timeline however, it is important to distinguish between events and conditions. Conditions tend to be passive items, such as the pump was running, the pipe was corroded, or the operators were not trained on the draining procedure. Condition statements are identified by the words was or were. Events by contrast are active, such as the pump started up or the pipe failed. Both events and conditions can be facts. They can both remain as suppositions also if indisputable. 

The existence of radial temperature and concentration gradients means that, in principle, one should include terms to account for these effects in the mass and heat conservation equations describing the reactor. Furthermore, there should be a distinction between the porous catalyst particles (within which reaction occurs) and the bulk gas phase. Thus, conservation equations should be written for the catalyst particles as well as for the bulk gas phase and coupled by boundary condition statements to the effect that the mass and heat fluxes at the periphery of particles are balanced by mass and heat transfer between catalyst particles and bulk gas phase. A full account of these principles may be found in a number of texts [23, 35, 36]. 

Programming is straightforward and uses a combination of the user defined dictionary, math expressions and conditional statements such as IF----THEN or GOTO. It is helpful to develop... 

Schematic representation of the MCSS procedure. Conditional statements are enclosed by diamonds.

Schematic representation of the CCLD program. Variable assignments are symbolized by =. Conditional statements are enclosed by diamonds. [From Reference 28.]...

The baseline condition is a statement that establishes the relationship between the true mean contaminant concentration and the action level. An example of the baseline condition statement is The true mean concentration exceeds the action level. The baseline condition is presumed to be true until proven false by overwhelming evidence... 

What is the importance of the null and the alternative hypotheses They enable us to link the baseline and alternative condition statements to statistical testing and to numerically expressed probabilities. The application of a statistical test to the sample data during data quality assessment will enable us to decide with a chosen level of confidence whether the true mean concentration is above or below the action level. If a statistical test indicates that the null hypothesis is not overwhelmingly supported by the sample data with the chosen level of confidence, we will reject it and accept the alternative hypothesis as a true one. In this manner we will make a choice between the baseline and the alternative condition. 

Example 2.2 illustrates the concepts of the baseline and the alternative condition statements, and the null and alternative hypotheses the case studies are presented on page 29. 

The variable Fox is not assigned in the else-branch of the conditional statement. Consequently, a latch is inferred for Fox since it needs to retain its value when Sat is true. The circuit synthesized in shown in Figure 1-10. 

A variable declared locally within an always statement is also inferred as a latch if it is incompletely assigned in a conditional statement (if statement or case statement). This is shown in the following module. 

If a variable is used before it is assigned in an incompletely specified conditional statement, then a latch is inferred. Here is such a module. 

If a variable, that is inferred as a latch, is assigned constant values in some branches of a conditional statement, bits that are 1 get assigned to the preset terminal of the latch, while those with 0 get assigned to the clear terminal. This is shown in the following example. 

A variable that does not have a value assigned in all branches of a case statement or an if statement can lead to a latch being built. This is because in Verilog HDL, a reg variable (assigned within an always statement) infers memory, and thus if the variable is not assigned a value in all branches of a conditional statement, the value needs to be saved in memory. Here is an example. 

If...Then...Else Delineates a block of conditional statements. 

Once acquired, there are many ways of representing the knowledge in the knowledge base, including production rules, frames, semantic networks, decision tables, and trees and objects. Probably the most common methodology is the production rule, which expresses the relationship between several pieces of information by way of conditional statements that specify sections under certain sets of conditions, for example ... 

Figure 12.2 shows the main components of Anderson s system. In his conception, declarative memory is a vast network of information chunks that may be connected to each other. All data (i.e., facts, propositions, experiences) are stored in declarative memory. Procedural knowledge is stored in production memory, and it operates on the data of declarative memory. Procedural knowledge consists of production rules. The conditional statements of the rules involve various conjunctions of specific declarative elements that must be true if the production is to fire, that is, if the action specified in the rule is to be carried out. 

It is important that a linear-time model is used in the probabilities One obtains security statements of the form the probability is small that an attacker manages to carry out a successful initialization and to forge later . The alternative would be conditional statements, such as the conditional probability is small that an attacker can forge, given that initialization was successful , which are not true in most existing schemes. 

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