Basics of Fundamentals of Algorithm (AQA)

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25 Terms

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Algorithm

A precise sequence of instructions or rules designed to perform a specific task or solve a problem.

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Finite (Characteristic)

An algorithm must terminate after a finite number of steps to avoid running indefinitely.

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Definite (Characteristic)

Each step of the algorithm must be precisely defined, leaving no ambiguity in actions.

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Effective (Characteristic)

The algorithm should solve the problem using a clear, logical procedure within a reasonable time and resources.

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Efficiency (Algorithm Importance)

Efficient algorithms can significantly improve software performance by reducing time and resources.

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Scalability (Algorithm Importance)

Well-designed algorithms can handle large inputs effectively, crucial for big data and complex computations.

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Reusability (Algorithm Importance)

Algorithms can be reused across programs, saving development time and ensuring consistency.

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String

A sequence of characters enclosed in quotes, used for storing text and characters.

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Integer

A whole number without a fractional component, used for counting and indexing.

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Real Number

Includes whole numbers and fractions, used for precision with fractional values.

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Variable Declaration

Specifying a variable's name and data type to allocate appropriate memory space.

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Variable Assignment

Storing a specific value in the allocated memory space of a declared variable.

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Memory Allocation (Variable Declaration Importance)

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Type-Checking (Variable Declaration Importance)

Ensures type-safe operations on variables to prevent errors.

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Readability (Variable Declaration Importance)

Improves code readability by making data types and variable purposes clear.

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Maintainability (Variable Declaration Importance)

Easier code updates and management when variables are clearly declared.

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Addition

Summing numbers for calculations like totals and quantities.

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Subtraction

Finding the difference between numbers for computations like remaining amounts.

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Multiplication

Calculating the product of numbers for computations like area or volume.

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Real Division

Dividing numbers to get a fractional result for computations like rates.

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Displaying Information

Outputting data to show program results and state, aiding user feedback and debugging.

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Identifier Names

Names given to variables, functions, and entities in code for easier reference and understanding.

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Descriptive Names

Using names that clearly describe the purpose of variables or functions for readability.

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Consistency

Sticking to a naming convention for uniformity in code.

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Avoid Abbreviations

Avoiding abbreviations unless universally understood to ensure clarity in code.