[ Thanks to nithin for this link.
]
“1.GiNaC : A C++ library for symbolic mathematical
calculations“GiNaC is an iterated and recursive acronym for GiNaC is Not a
CAS, where CAS stands for Computer Algebra System. It is designed
to allow the creation of integrated systems that embed symbolic
manipulations together with more established areas of computer
science (like computation-intense numeric applications, graphical
interfaces, etc.) under one roof.“2.p5-Math-Complex: Complex numbers and associated mathematical
functions“This package lets you create and manipulate complex numbers. By
default, Perl limits itself to real numbers, but an extra use
statement brings full complex support, along with a full set of
mathematical functions typically associated with and/or extended to
complex numbers.“3.abs :A free spreadsheet with graphical user interface Abs is
a free spreadsheet with graphical user interface. It has a
programming language with the same syntax as Microsoft Visual
Basic.“4.biggles: Create publication-quality 2D scientific plots
Biggles is a Python module for creating publication-quality 2D
scientific plots. It supports multiple output formats (postscript,
x11, png, svg, gif), understands simple TeX, and sports a
high-level, elegant interface. It’s intended for technical
users with sophisticated plotting needs. The goal is to produce the
best scriptable plotting program.”