specialFourfold(String,ZZ) -- load a prebuilt example of fourfold

Synopsis

Function: specialFourfold
Usage:

specialFourfold(str,i)
Inputs:
- str, a string, such as "prebuilt-example-in-P5" or "prebuilt-example-in-P7".
- i, an integer
Optional inputs:
- InputCheck => ..., default value 1, make a Hodge-special fourfold
- NumNodes => ..., default value null, make a Hodge-special fourfold
- Verbose => ..., default value false, request verbose feedback
Outputs:
- a Hodge-special fourfold, the i-th example of fourfold in accordance with some classification (e.g., specialFourfold("prebuilt-example-in-P5",i) is the same as source trisecantFlop(i).

This function requires the package TrisecantFlops. If not present the user will be asked to automatically install the package.