DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.
Symja - Java Computer Algebra System
Java Computer Algebra System. Features: math expression parser and evaluating API (jsr223), pattern matching. Moved to http://bitbucket.org/axelclk/symja_android_library