The inversion software depends on these external software packages which must be installed:

• CFITSIO version 3.28 (C FITS File Subroutine Library )
• Linear Algebra PACKage (LAPACK, and CLAPACK)
• FFTW version 3 (Fastest Fourier Transform in the West)
• Lex and Yacc or Flex version 2.5.35 and Bison version 2.5 (Lex/YACC/Flex/Bison)
• Python version 2.7.3 (Python)

1. unzip and extract core.tar.gz
2. unzip and extract ola.tar.gz, rls.tar.gz, fwd.tar.gz or any combination of the three.
3. unzip and extract ola_test.tar.gz, rls_test.tar.gz, or fwd_test.tar.gz or any combination of the three.
(These contain sample test files for the SOLA and RLS inversions and test files for the forward calculation.)
4. cd td_inversion/3.5 (where 3.5 is the code version)
5. make all
6. make test_rls (if the rls inversion code is installed)

The test uses sample data files to perform an inversion and then compares the results in Examples/testdata/testOutput to the expected results in Examples/testdata/output directory.

To run the inversion on your own, use this command:
./invert ./Examples/testdata/testInputFile

The Documents directory contains three levels of documentation. UserGuide*.pdf explains the format of input and output files. The *Notes.pdf files contain detailed equations for each calculation. Code documentation starts at Documents/html/index.html.