SolverLogger

This is a logger for solvers, as the name implies.

Basic usage

julia> logger = Logger(:iter => ("Iter", "%4d"), :fx => ("f(x)", "%8.1e"), verbosity=1)
...
julia> header(logger)
| Iter |     f(x) |
julia> logger(45, sqrt(2))
|   45 |  1.4e+00 |