This is a small library to read matrix data from
MatrixMarket exchange files (.mtx).
There are several restrictions/assumptions:
- Matrices with complex values are not handled.
- Pattern matrices are processed as if each value is 1.0.
- Integer-valued matrices are treated as real-valued.
- Symmetry is not handled specially; for each element, the corresponding symmetric element is added to the matrix as an ordinary element while reading the matrix file.