| block_index | Find independent blocks of equations. |
| compact | Remove spurious variables and restrictions |
| echelon | Reduced row echelon form |
| eliminate | Eliminate a variable from a set of edit rules |
| is_feasible | Check feasibility of a system of linear (in)equations |
| is_totally_unimodular | Test for total unimodularity of a matrix. |
| lintools | Tools for manipulating linear systems of (in)equations |
| normalize | Bring a system of (in)equalities in a standard form |
| pinv | Moore-Penrose pseudoinverse |
| print.sparse_constraints | Generate sparse set of constraints. |
| project | Project a vector on the border of the region defined by a set of linear (in)equality restrictions. |
| ranges | Derive variable ranges from linear restrictions |
| sparseConstraints | Generate sparse set of constraints. |
| sparse_constraints | Generate sparse set of constraints. |
| sparse_constraints.data.frame | Generate sparse set of constraints. |
| sparse_project | Successive projections with sparsely defined restrictions |
| subst_value | Substitute a value in a system of linear (in)equations |