## Version 1.2.0

To solve one or more sets of sparse linear complex equations, $Ax=b$, ${A}^{T}x=b$ or ${A}^{H}x=b$, by the frontal method, optionally using direct-access ﬁles for the matrix factors so that large problems can be solved in a relatively small in-core memory (${A}^{H}x=b$ is the transpose of the complex conjugate of $A$). Use is made of high level BLAS kernels. The code has low in-core memory requirements. The complex matrix $A$ may be input by the user in either of the following ways: