TLS (SSL) sockets, key generation, encryption, decryption, signing, verification and KDFs using the OS crypto libraries. Does not require a compiler, and relies on the OS for patching. Works on Windows, OS X and Linux/BSD.

PETSc is the "Portable Extensible Toolkit for Scientific Computation", a suite of data structures and routines for the scalable (parallel) solution of scientific applications modeled by partial differential equations. It employs the MPI standard for all message-passing communication. Several sample scientific applications, as well as various papers and talks, demonstrate the features of the PETSc libraries.

Proj and invproj perform respective forward and inverse transformation of cartographic data to or from Cartesian data with a wide range of selectable projection functions (over 100 projections).

CppAD is a package for automatic differentiation (AD) of algorithms written in C++. Given appropriately written C++ code that computes a function, CppAD augments it to also compute derivative values. The system uses templates, supports forward and reverse accumulation modes, and allows nested derivatives.

This package provides an extremely tiny and fast library for terminal output formatting using ANSI colors.

!!!!! Please note, the compiler is in a very early stage and not usable yet for compiling real Rust programs !!!!!