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ME43 Sparse unsymmetric system: row-by-row frontal method

To solve one or more sets of variable-band complex linear equations, $Ax=b$, ${A}^{T}x=b$ or ${A}^{H}x=b$, by the frontal method (${A}^{H}x=b$ is the transpose of the complex conjugate of $A$). ME43 provides the user with a straightforward interface to the HSL routine ME42 when entry is by equations and auxiliary storage is not required. If the user requires more sophisticated facilities, ME42 should be employed.