A function which may (but does not necessarily) associate a given member of the range of with more than one member of the domain of . For example, trigonometric functions such as are many-to-one since .

# Many-to-One

## See also

Domain, Multivalued Function, One-to-One, Range## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Many-to-One." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Many-to-One.html