Description Usage Arguments Details Value Author(s) References See Also Examples

`inverse`

is a S3 generic method for inverting an R operator in the
mathematical sense. Presently, inverses are defined for relational
operators, i.e. changing `>`

to `<=`

etc.

1 |

`x` |
object representing an R operator |

`...` |
additional arguments |

Arguments will be checked against the defined list of inverses, If an entry exists, the corresponding inverse is returned.

`inverse`

returns the inverse in the same form as the `x`

argument. Thus, if a name is provided, a name is returned. If a function is
provided, a function is returned.

Christopher Brown

http://en.wikipedia.org/wiki/Inverse_mathematics.

`operators`

especially `operators(type="relational"))`

1 2 3 4 5 |

```
`==`
function (e1, e2) .Primitive("!=")
```

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