Tag
Domain
Entries tagged domain.
3 entries
Concept
Equations as constraints
An equation is not a puzzle with one ritual answer; it is a filter that sorts every candidate value into allowed or disallowed, and the solution set can be empty, one value, several, or infinite.
7 min
ConceptFunctions as machines and relationships
A function is a rule that assigns to every element of an allowed set of inputs exactly one element of an output set, regardless of whether the rule is a formula, a table, or a picture.
7 min
ConceptVariables and unknowns
A variable is a symbol paired with a domain of allowed values, standing for an unknown, a varying quantity, or a placeholder for generality depending on how it is used.
7 min