The ProVal team was stopped at the end of August 2012, and reborn into a new team
Toccata

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## Gappa

Tool for verifying and formally proving properties on numerical programs dealing with floating-point or fixed-point arithmetic

- Veltkamp/Dekker algorithm
- Floating-point square root using Newton iteration
- Scalar product of vectors using floating-point numbers
- Drift of a clock using floating-point numbers
- Approximated Cosine, exact values and rounding errors
- Approximated Cosine in C annotated in ACSL
- Approximated Cosine in Why3