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Vector and affine spaces, linear maps, and derivatives
vector-space provides classes and generic operations for vector spaces
and affine spaces in Haskell. It also defines a type of infinite towers
of generalized derivatives. A generalized derivative is a linear
transformation rather than one of the common concrete representations
(scalars, vectors, matrices, etc).
Random variate generator for Lipschitz-continuous densities
libranlip is a C++ library created by G. Beliakov, which generates random
variates with arbitrary Lipschitz-continuous densities via the acceptance /
rejection method. The density should have a dimension of no more than about
five. The user needs to supply the density function using a simple syntax, and
then call the methods of construction and generation provided in libranlip.
Library for arbitrary precision arithmetic (MinGW32)
GMP is a free library for arbitrary precision arithmetic, operating
on signed integers, rational numbers, and floating point numbers.
There is no limit to the precision except the ones implied by the
available memory in the machine GMP runs on. GMP has a rich set of
functions, and the functions have a regular interface.
This port compiles libgmp using MinGW32.
Details of the floating point data type
This module is about the native floating point numerical
data type. A floating point number is one of the types of
datum that can appear in the numeric part of a Perl scalar.
This module supplies constants describing the native floating
point type, classification functions, and functions to
manipulate floating point values at a low level.
High-level interactive language for numerical computations
Octave is a high-level language, primarily intended for numerical
computations. It provides a convenient command line interface for
solving linear and nonlinear problems numerically, and for performing
other numerical experiments. It may also be used as a batch-oriented
language.
Perl routines for data sets interpolation and interval search
* This module contains several useful routines for interpolating
data sets and finding where a given value lies in a sorted list.
The first is a subroutine used to locate a position in an array
of values where a given value would fit using bisection. It has
been designed to be efficient in the common situation that it is
called repeatedly. The user can supply a different set of comparison
operators to replace the standard < and <=. For example, given a
list (1, 2, 5, 8, 15) and the number 9.5 it would return 3.
* The remaining routines all are related to interpolating sets of
(x,y) data pairs. They all take a list of (x,y) data pairs given
another x value, return a sensible y value using the list of (x,y)
data pairs. Three different interpolating functions are provided.
The first, called a constant interpolator, assumes that the
function being interpolated moves in non-linear jumps from one
value to another. The interpolated value for some value x is the
y value of the neighboring (x,y) to the left of the given x. The
second interpolator performs a linear interpolation between the
neighboring points. The third interpolator is called the robust
interpolator and interpolates a smooth curve between all of the
(x,y) pairs. To do the interpolation, it first calculates some
reasonable derivatives at the (x,y) pairs. The robust interpolator
can also use derivative information supplied by the user.
Perl module to manage an interval on the integer line
A Set::Window object represents a window on the integer line; that is, a
finite set of consecutive integers.
Methods are provided for creating and modifying windows, for obtaining
information about windows, and for performing some simple set operations
on windows.
-Anton
<tobez@FreeBSD.org>
GNU spreadsheet for X11 and terminals
`Oleo' has more than one user interface. The traditional `oleo'
environment shows a curses based (character mode) user interface.
A bare bones user interface based on the X Window System exists as of
version 1.6 which dates back to 1994. In 1998, development started for
a `motif' based user interface. It should be more user friendly than
the character based UI.
High quality system independent, portable, open source libm
OpenLibm is an effort to have a high quality, portable, standalone C
mathematical library (libm). It can be used standalone in applications and
programming language implementations.
The project was born out of a need to have a good libm for the Julia
programming langage that worked consistently across compilers and operating
systems, and in 32-bit and 64-bit environments.
LaTeX Document Processing Framework
plasTeX is a LaTeX document processing framework written entirely in Python. It
currently comes bundled with renderers for XHTML, DocBook, man pages, plain
text, as well as a way to simply dump the document to a generic form of XML.
Other renderers can be added as well and are planned for future releases.