pfd-parallel-listnumden-converter

Important Notice

This repo. has stopped maintaining since the end of 2023. All its main code is integrated in the pfd-parallel Mathematica interface: PfdParallelM.

Usage

pfd-parallel-listnumden-converter is a format converter for pfd-parallel.

pfd-parallel is a package to simplify rational functions by partial fraction decomposition. It is based on the Singular/GPI-Space framework. Thus, the input rational functions of pfd-parallel should be prepared in Singular readable format, which are .ssi or listnumden (.txt). See here for more details.

This package provides a parallel conversion from Mathematica readable files to Singular readable listnumden (.txt) files, so that they can be used as inputs for pfd-parallel. For example, the expression $x+\frac{x+yz}{z^2}$ will be converted to list(list(x,1),list(x+y*z,z^2)) in listnumden txt files.

How to use

1. Prepare your rational functions in separated Mathematica readable files (which means you can read it in Mathematica by somename=Get["some path"]). The files should be put in the same folder, and the folder should contain no other file or sub directory. Let the folder be labled as [inputFolder].
2. Run

math -script listnumden-converter.wl [inputFolder] [outputFolder]

3. The converted rational functions in form of listnumden will be exported to [outputFolder].

More about

1. You can use the converter in Mathematica notebook. If so, remember to set commandLineMode=False and type in the [inputFolder] and [outputFolder] by hand.
2. It is recommended to use absolute paths for [inputFolder] and [outputFolder].
3. If [outputFolder] dose not exit, it will be created. If it exists, the files inside may be overwritten with no warning message.
4. The conversion is in parallel using Mathmatica's ParallelTable.