Best Prolog Programming Books to Buy in January 2026
Programming in Prolog: Using The Iso Standard
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The Craft of Prolog (Logic Programming)
Logic Programming with Prolog
Adventure in Prolog
Expert Systems in Prolog
The Art of Prolog: Advanced Programming Techniques (Mit Press Series in Logic Programming)
Clause and Effect: Prolog Programming for the Working Programmer
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Prolog Programming for Artificial Intelligence
Learn Prolog Now! (Texts in Computing, Vol. 7)
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In Prolog, you can check whether a value is a numeric value by using the built-in predicate number/1. This predicate checks if the given value is a number, including integers, floats, and rational numbers. You can use this predicate in a clause to determine if a value is numeric or not. If the value is numeric, the predicate will succeed and if not, it will fail. You can also use the is/2 operator to perform arithmetic operations on numeric values. Overall, Prolog provides built-in predicates and operators to check and work with numeric values effectively.
What is the relationship between integer and numeric values in Prolog?
In Prolog, integers are a specific subset of numeric values. Numeric values in Prolog can include integers (whole numbers), floats (decimal numbers), and rational numbers. Integers have the subtype "integer" within numeric values in Prolog, which means that all integers are also considered numeric values. This relationship allows Prolog to perform arithmetic operations on both integers and other numeric values using built-in predicates.
What is the Prolog standard for identifying numeric values?
In Prolog, numeric values can be identified by using the number atom. This includes integer numbers, floating point numbers, and fractions. For example:
?- number(5). true.
?- number(5.7). true.
?- number(6/2). true.
What is the scope of numeric value checking in Prolog programs?
The scope of numeric value checking in Prolog programs can vary depending on the specific requirements of the program. Typically, numeric value checking in Prolog programs involves verifying that a given input is a valid numeric value, and potentially performing additional operations or calculations with the numeric value.
Some common examples of numeric value checking in Prolog programs include:
- Validating user input to ensure it is a valid numeric value
- Performing arithmetic operations with numeric values
- Checking for numeric constraints or conditions (e.g., checking if a number is positive or negative)
- Converting between different numeric representations (e.g., converting between integers and floats)
Overall, the scope of numeric value checking in Prolog programs is typically focused on ensuring the accuracy and validity of numeric values used in computations or other operations within the program.
What is the syntax for checking if a value is numeric in Prolog?
In Prolog, you can check if a value is numeric using the built-in predicate number/1. The syntax for checking if a value X is numeric in Prolog is as follows:
number(X)
This predicate succeeds if X is a number, either an integer or a floating-point number. It fails if X is not a number.