A logic IDE for the sentential logic and the predicate logic.
C++ library adds mathematical fractions. Example: 1/3, 4/7, 49/357...
MLE survival analysis: Gompertz, Weibull, Logistic and mixed morality.
A simple programmable spreadsheet for learning statistics.
ATMSP - A Tiny Mathematical Speed Parser
Javafastcomplex has both mutable and immutable complex numbers
Complex error functions, Dawson, Faddeeva, and Voigt function
command line interface calculator
A fast prime number generator based on the Sieve of Eratosthenes