biconjugate gradient stabilized method http://identifiers.org/doi/10.1137/0913035 An iterative method for the numerical solution of nonsymmetric linear systems. It is a variant of the biconjugate gradient method (BiCG) [http://identifiers.org/biomodels.kisao/KISAO_0000358] and has faster and smoother convergence than the original BiCG. Bi-CGSTAB BiCGSTAB CVODE ingenious conjugate gradients-squared method improved biconjugate gradient method