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Specfun

(639/8392 downloads)

A collection of special functions

Details

Version

0.3-1
Most recent version: 0.4.1

Author(s)

Michaël Baudin

Entity

DIGITEO

Package maintainer

Michael Baudin

Category

Scilab development

WebSite

http://forge.scilab.org/index.php/p/specfun/

License

CeCILL

Supported Scilab Versions

>= 5.3

Dependencies

Apifun (any version)

Assert (≥ 1.0)

Creation Date

22nd of December 2010

ATOMS packaging system

Available on

How To Install

atomsInstall('specfun')

Report a bug

Forge's bug tracker for specfun

Description


Purpose
--------

The goal of this toolbox is to provide special functions.
The toolbox is based on macros.
Any distribution function (cumulated or not) should not be placed 
into this module: the good module for this is distfun.

This module depends on :
 * the apifun module,
 * the assert module.

Features
--------

The following is a list of the current features: 

 * specfun_expm1 : Compute exp(x)-1 accurately for small values of x.
 * specfun_gammainc : The incomplete gamma function.
 * specfun_lambertw : The Lambert W-Function.
 * specfun_log1p : Compute log(1+x) accurately for small values of x.
 *  Discrete Maths
   * specfun_combine : Returns the all the combinations of the given vectors.
   * specfun_combinerepeat : Returns repeated combinations with replacement.
   * specfun_factorial : The factorial function
   * specfun_factoriallog : The log-factorial function
   * specfun_nchoosek : Returns the binomial number (n,k).
   * specfun_pascal : Returns the Pascal matrix.
   * specfun_subset : Generate all combinations of k values from x without
replacement.

Authors
------

2010, DIGITEO, Michael Baudin
2009, Pascal Getreuer

Acknowledgements
----------------

Samuel Gougeon
Calixte Denizet

Files (2)

[86.72 Ko]

specfun-0.3-1-src.zip

File class  : source
Upload date : 2010-12-22 16:24:36
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[159.31 Ko]

specfun_0.3-1.bin.zip

Binary version
Automatically generated by the ATOMS compilation chain

File class  : all binary
Upload date : 2011-01-06 08:06:00
MD5         : 9f2a7cd81825e5d4a786680e581c8b83
SHA1        : 33acc879c379aafccc50f6a6e5b892987b6577ee
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Leave a comment

Comment from Michael Baudin -- 6th of January 2011, 09:24:58 AM

This version has no known issue.

-->atomsTest('specfun')
   TMPDIR = C:\Users\baudin\AppData\Local\Temp\SCI_TMP_10076_

   001/012 - [SCIHOME\atoms\specfun\0.3-1] checkflint..............passed 
   002/012 - [SCIHOME\atoms\specfun\0.3-1] combine.................passed 
   003/012 - [SCIHOME\atoms\specfun\0.3-1] combinerepeat...........passed 
   004/012 - [SCIHOME\atoms\specfun\0.3-1] expm1...................passed 
   005/012 - [SCIHOME\atoms\specfun\0.3-1] factorial...............passed 
   006/012 - [SCIHOME\atoms\specfun\0.3-1] factoriallog............passed 
   007/012 - [SCIHOME\atoms\specfun\0.3-1] gammainc................passed 
   008/012 - [SCIHOME\atoms\specfun\0.3-1] lambertw................passed 
   009/012 - [SCIHOME\atoms\specfun\0.3-1] log1p...................passed 
   010/012 - [SCIHOME\atoms\specfun\0.3-1] nchoosek................passed 
   011/012 - [SCIHOME\atoms\specfun\0.3-1] pascal..................passed 
   012/012 - [SCIHOME\atoms\specfun\0.3-1] subset..................passed 

   --------------------------------------------------------------------------
   Summary

   tests                       12 - 100 % 
   passed                      12 - 100 % 
   failed                       0 -   0 % 
   skipped                      0 -   0 % 
   length                          8.81 sec 
   --------------------------------------------------------------------------

Comment from Michael Baudin -- 6th of January 2011, 09:26:23 AM

Here are the CHANGES for this version.


specfun (0.3)
    * Created specfun_getpath.
    * Improved robustness and help page of nchoosek.
    * In expm1, added unit tests for robustness.
    * In log1p, added unit tests for robustness.
    * In lambertw, added unit tests for robustness.
    * In lambertw, changed order of b and z for consistency (backward compatibility lost).
    * Removed assert function from all unit tests. Module specfun now depends on assert 
module.
    * In lambertw, improved management and testing of %inf, %nan and zero.
    * Made consistent use of specfun_checkflint.