A Macaulay2 package for the examples of trisecant flops contained in Table 1 of https://arxiv.org/abs/1909.01263
git clone https://github.com/giovannistagliano/TrisecantFlops.git
cd TrisecantFlops
M2
needsPackage "TrisecantFlops"
installPackage "TrisecantFlops"
viewHelp "TrisecantFlops"