The sparse matrix library component of this software is currently under some upheaval. The reason relates to another project, called principal component (PC) proxy tracer interpolation. In order to better understand and refine this method (in particular the mathematics behind it), I am endeavouring to create a calculator for large and sparse matrices. This involves creating a matrix class hierarchy as well as matrix inverse methods. In retrospect, this is an ambitious project and may take some time (and regrettably, may not entirely succeed...)