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Interactivegeometry software for Euclidean and non-Euclidean spaces
GeomSpace is interactivegeometry software for different geometric spaces. You can build your own universe of any dimension and with any geometry. You can choose Euclidean, elliptic, hyperbolic, Galilean, Minkowskii, de Sitter among other spaces.
EVERT is an acoustic beam-tracing library. It is optimized for a moving listener with static geometry and sound source. It computes all the visible specular reflection paths up to the given reflection order.