correspondenceScroll -- Union of planes joining points of rational normal curves according to a given correspondence
hankelMatrix -- matrix with constant anti-diagonal entries
productOfProjectiveSpaces -- Constructs the multi-graded ring of a product of copies of P^1 (pp is a synonym)
Functions with optional argument named CoefficientField:
carpet(...,CoefficientField=>...) -- see carpet -- ideal of a K3 carpet
productOfProjectiveSpaces(...,CoefficientField=>...) -- see productOfProjectiveSpaces -- Constructs the multi-graded ring of a product of copies of P^1 (pp is a synonym)