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Eris Solver vs Flattr

A side-by-side look at Eris Solver and Flattr. For an in-depth review of either product, follow the links below.

Eris Solver

Eris Solver

Education & Reference

Eris Solver is an open-source mathematical computation software for solving equations, derivatives, limits, integrals, matrices, linear algebra, and more. It has a simple interface for typing mathematical expressions and computing solutions.

mathequationsalgebracalculusopensource
Flattr

Flattr

Online Services

Flattr is a microdonation service that allows users to support online content creators with small financial contributions. Readers can 'Flattr' pieces of content, allocating a small monthly budget that is divided among everything they Flattr. It aims to provide an alternative revenue model for writers, musicians, filmmakers and other creators.

microdonationscontent-creatorsalternative-revenue