Based on PebbleFormulas it's a quick and useful way to access to a many and always new formulas of Algebra, Geometry, Calculus, Trigonometry, Biology, Physics, Chemistry e le Conversion.
In italiano!!!
Presto nuove formule e funzionalità!!!

Se volete contattarmi: francesco.dulio@gmail.com.
The author of PebbleFormulas is Devin Simmons: Blackpaw1996@gmail.com.