Mapping/Examples/Area and Circumference of Circle
Jump to navigation
Jump to search
Examples of Mappings
Let $A$ denote the set of circles.
Let $f_1: A \to \R$ be the mapping defined on $A$ as:
- $\forall a \in A: \map {f_1} a = \map {\Area} a$
Let $f_2: A \to \R$ be the mapping defined on $A$ as:
- $\forall a \in A: \map {f_2} a = \map {\operatorname {Circ} } a$
where $\map {\operatorname {Circ} } a$ denotes the circumference of $a$.
Sources
- 1977: Gary Chartrand: Introductory Graph Theory ... (previous) ... (next): Appendix $\text{A}.4$: Functions