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Free
Office Suite:
OpenOffice.org is a
multiplatform and
multilingual
office suite and an
open-source
project. Compatible with all other major office suites, the product is
free to download, use, and distribute. To help build the community,
join us.
You can make math symbols, write papers, or create pdf files.
Free Graphing Utilities

GraphCalc

Win Graphex MacGraphex
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