The Value of One Function Determines the Value of Another

26 Views Asked by At

The value of $\pi(s)$ determines the value of $m(n)$. How do we describe such a relationship between two functions in standard terminology? How do we express this mathematically?

1

There are 1 best solutions below

0
On

The particular relation you're thinking of is probably functional composition; that is, if the value of $\pi$ determines the value of $m$, there the should be some function $f$ such that $$f(\pi(n))=m(n)$$ which just takes the given value for $\pi$ and uses it to find the appropriate value for $m$. We would write this relation as $$f\circ \pi = m.$$