isColumnConvex -- Column convexity of a collection of cells

Usage:

isColumnConvex Q
Inputs:
- Q, a collection of cells
Outputs:
- true if Q is column-convex, otherwise false

Description

Checks whether a collection of cells $\mathcal{P}$ is column-convex, i.e., every pair of cells in the same column determines an inner interval fully contained in $\mathcal{P}$.

i1 : Q = cellCollection {{1,1},{2,1},{3,1},{1,2},{3,2}};

i2 : isColumnConvex Q

o2 = true

i3 : Q = cellCollection {{1,1},{1,2},{1,3},{2,3},{2,1}};

i4 : isColumnConvex Q

o4 = false

Ways to use isColumnConvex:

isColumnConvex(CollectionOfCells)

For the programmer

The object isColumnConvex is a method function with options.

The source of this document is in PolyominoIdeals.m2:1777:0.

isColumnConvex -- Column convexity of a collection of cells

Description

See also

Ways to use isColumnConvex:

For the programmer