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# inverseMap(...,Verbose=>...)

## Description

This option accepts a Boolean value. Set this to false if you don't want to get the certification message from Certify.

    i1 : f = toMap vars(QQ[x_0..x_2]);

    o1 : RingMap QQ[x ..x ] <-- QQ[x ..x ]
                     0   2          0   2

    i2 : isBirational(f,Certify=>true)
    Certify: output certified!

    o2 = true

    i3 : isBirational(f,Certify=>true,Verbose=>false)

    o3 = true

## Functions with optional argument named Verbose:

- `check(...,Verbose=>...)` -- see check -- perform tests of a package
- `copyDirectory(...,Verbose=>...)` -- see copyDirectory(String,String)
- `copyFile(...,Verbose=>...)` -- see copyFile(String,String)
- `findProgram(...,Verbose=>...)` -- see findProgram -- load external program
- `installPackage(...,Verbose=>...)` -- see installPackage -- load and install a package and its documentation
- `approximateInverseMap(...,Verbose=>...)`
- `ChernSchwartzMacPherson(...,Verbose=>...)`
- `degreeMap(...,Verbose=>...)`
- `EulerCharacteristic(...,Verbose=>...)`
- inverseMap(...,Verbose=>...)
- `isBirational(...,Verbose=>...)`
- `isDominant(...,Verbose=>...)`
- `projectiveDegrees(...,Verbose=>...)`
- `SegreClass(...,Verbose=>...)`
- `moveFile(...,Verbose=>...)` -- see moveFile(String,String)
- `runProgram(...,Verbose=>...)` -- see runProgram -- run an external program
- `symlinkDirectory(...,Verbose=>...)` -- see symlinkDirectory(String,String) -- make symbolic links for all files in a directory tree

## Further information

- Default value: true
- Function: inverseMap -- inverse of a birational map
- Option key: Verbose -- an optional argument

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/Cremona/documentation.m2:959:0.