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MathMod is a mathematical modeling software that visualize and animate implicit and parametric surfaces. MathMod supports: 3D and 4D plotting and animation, OBJ output file format, Texture and pigmentation support, Noise and Turbulence effects support, Large set of scripted examples.

Date::Handler is a container for dates that holds all the methods to transform itself from Timezone to Timezone and format itself. It uses operator overloading and Delta date objects to calculates time differences.

This package supplies a set of functions and operators to manipulate operator expressions algebraically using the familiar Perl syntax. These expressions are constructed from "Symbols", "Operators", and "Functions", and processed via "Methods". For examples, see: "Examples".

Math::BigInt - Arbitrary size integer math package for perl. This is a complete rewrite of Math::BigInt, Math::BigFloat and friends, which are included with the standard system perl.

Math::GMPf is a bigfloat module utilising the GNU MP (GMP) library. Basically this module simply wraps all of the mpf floating point functions provided by that library. See the Math::GMPf test suite for some examples of usage.

Math::GMPz is a bignum module utilising the GNU MP (GMP) library. Basically this module simply wraps all of the mpz integer functions provided by that library. See the Math::GMPz test suite for some examples of usage.

This package is a Perl interface to famous library PARI for numerical/scientific/number-theoretic calculations. It allows use of most PARI functions as Perl functions, and (almost) seamless merging of PARI and Perl data.

PLMan, or Propositional LogicMan, is a user-friendly and powerful propositional logic (sometimes called sentential logic or propositional calculus) sentence shell/interpreter written in Java, capable of handling many existing propositional systems of propositional logic, especially the important ones.

This package attempts to make it easier to write scripts that use BigInts/BigFloats in a transparent way. They use the rewritten versions of Math::BigInt and Math::BigFloat, Math::BigRat (for bigrat) and optionally Math::BigInt::Lite.

This python module implements constants and functions for working with IEEE754 double-precision special values. It provides constants for Not-a-Number (NaN), Positive Infinity (Inf), and Negative Infinity (-Inf), as well as functions to test for these values.