lintools 0.1.3 is on CRAN

Version 0.1.3 of the lintools package was accepted on CRAN today.

This version brings a few internal improvements and switches the testing suite to the tinytest test infrastructure.

lintools is provides basic manipulations of linear systems of equalities and inequalities including: variable elimination (Gaussian elimination, Fourier-Motzkin elimination), Moore-Penrose pseudoinverse, reduction to reduced row echelon form, value substitution, projecting a vector on the convex polytope described by a system of (in)equations, simplifing systems by removing spurious columns and rows and collapsing implied equalities, testing whether a matrix is totally unimodular and computing variable ranges implied by linear (in)equalities.

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