  This article presents a computer program that computes the dimension of a
bipartition matrix. Its dimension has three independent components: row
dimension, column dimension, and entry dimension. The program applies four
routines of independent interest: (1) a routine that factors a bipartition as a
formal product of indecomposables, (2) a routine that computes the inverse and
recovers the bipartition, (3) a routine that factors a bipartition matrix as a
formal product of indecomposables, and (4) a routine that calculates the
"transpose-rotation" of a bipartition matrix (the column dimension is the row
dimension of the transpose-rotation).
