Single-valued
Adjective describing a function or relation that assigns exactly one value to each input or element in its domain. In mathematical contexts, single-valued functions produce a unique output for every input, distinguishing them from multi-valued functions that may yield several outputs for a single input.
Single-valued meaning with examples
- In mathematics, a single-valued function is essential for establishing predictable outputs; for instance, the square root function typically returns the principal root, ensuring that every non-negative number corresponds to one specific value.
- When programming, a variable declared as single-valued allows for clarity and simplicity in data handling, preventing unexpected results that might arise from functions returning multiple values for the same input.
- The concept of single-valued mappings is crucial in graph theory, where each vertex can be associated with only one edge, facilitating easier navigation and understanding of network structures and relationships.
- In database design, maintaining single-valued attributes ensures the integrity of data entries, making it clear that each field will correspond to a unique value, thus reducing redundancy and complexity.
- When defining a physical property, such as temperature, it can be considered single-valued in a given context, as each location and time will correspond to a specific temperature reading without ambiguity.