/usr/share/doc/libcolt-free-java/index.html is in libcolt-free-java-doc 1.2.0+dfsg-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--Do not edit this autogenerated HTML file; edit src/xdocs files instead. --><html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><style type="text/css"> @import url("style.css"); </style><title>Colt - Welcome</title><meta content="Wolfgang Hoschek" name="author"><meta content="whoschek.AT.lbl.DOT.gov" name="email"></head><body vlink="#525D76" alink="#525D76" link="#525D76" text="#000000" bgcolor="#ffffff"><!--HEADER--><table bgcolor="#ffffff" cellspacing="0" width="100%" border="0"><tr><td align="left" width="33%">
<a href="http://dsd.lbl.gov/~hoschek/colt">
<img src="images/colt-logo.gif" border="0" width="160" height="100" alt="">
</a>
</td><td align="center" width="33%">
<img src="images/colt-title.jpg" alt="">
</td><td align="right" width="33%">
<a href="http://www.cern.ch">
<img src="images/cern-logo.gif" border="0" alt="">
</a>
</td></tr></table><!--TOP LINK MENU NAVIGATION--><div class="link"><table cellspacing="0" cellpadding="0" width="100%" border="0"><tr valign="baseline"><td align="left"><a href="http://dsd.lbl.gov/~hoschek/colt" title="Click to jump to Colt"><font color="#3366ff">Colt</font></a><a href="http://dsd.lbl.gov/sea/" title="Click to jump to Sea"><font color="#3366ff">Sea</font></a><a href="http://dsd.lbl.gov/firefish" title="Click to jump to Firefish"><font color="#3366ff">Firefish</font></a></td><td align="right"> Version 1.2.0 - Last published Sep 9, 2004</td></tr></table></div><table cellspacing="4" width="100%" border="0"><tr><!--LEFT SIDE NAVIGATION--><td class="leftcol" nowrap="nowrap" align="left" valign="top"><div class="frame item"><div class="name">Software</div><div class="content"><a href="./index.html">Home</a><a href="http://dsd.lbl.gov/~hoschek/colt-download">Download</a><a href="./install.html">Installation</a><a href="./readme.html">Readme</a><a href="./mailing.html">Mailing List</a><a href="./changelog.html">Changelog</a></div></div><div class="frame item"><div class="name">Development</div><div class="content"><a href="./dependencies.html">Dependencies</a><a href="./api/index.html">Javadoc API</a><a href="./license.html">License</a></div></div><div class="frame item"><div class="name">Search</div><div class="content"><form method="get" action="http://www.google.com/search"><input name="as_sitesearch" type="hidden" value="dsd.lbl.gov"><input name="as_q" maxLength="256" size="13" value="" type="text"></form></div></div></td><!--LEFT SIDE SUBNAVIGATION--><!--RIGHT SIDE MAIN BODY--><td valign="top" align="left"><table width="100%" cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Introduction"><strong>Introduction</strong></a></font></td></tr><tr><td><blockquote>
<div class="frame note"><div class="name"><a name="Welcome to the Colt Project">Welcome to the Colt Project</a></div><div class="content">
Welcome to the Colt Project. Colt provides a set of Open Source Libraries for
High Performance Scientific and Technical Computing in Java.
<p>
Scientific and technical computing,
as, for example, carried out at CERN, is characterized by demanding problem sizes
and a need for high performance at reasonably small memory footprint. There is
a perception by many that the Java language is unsuited for such work. However,
recent trends in its evolution suggest that it may soon be a major player in performance
sensitive scientific and technical computing. For example, IBM Watson's <a href="http://www.research.ibm.com/ninja/">Ninja
project</a> showed that Java can indeed perform BLAS matrix computations up to
90% as fast as optimized Fortran. The <a href="http://math.nist.gov/javanumerics/">Java
Grande Forum Numerics Working Group</a> provides a focal point for information
on numerical computing in Java. With the performance gap steadily closing, Java
has recently found increased adoption in the field. The reasons include ease of
use, cross-platform nature, built-in support for multi-threading, network friendly
APIs and a healthy pool of available developers. Still, these efforts are to a
significant degree hindered by the lack of foundation toolkits broadly available
and conveniently accessible in C and Fortran.
</p>
<p> The latest stable Colt release breaks the <a href="ibm-1.4.1-2xpentium4-2.8GHz.txt"> 1.9 Gflop/s barrier</a>
on JDK ibm-1.4.1, RedHat 9.0, 2x IntelXeon@2.8 GHz.
</p>
</div></div>
<p></p>
<div class="frame note"><div class="name"><a name="Scope">Scope</a></div><div class="content"> This distribution provides an infrastructure for scalable scientific
and technical computing in Java. It is particularly useful in the domain of
High Energy Physics at CERN: It contains, among others, efficient and usable
data structures and algorithms for Off-line and On-line Data Analysis, Linear
Algebra, Multi-dimensional arrays, Statistics, Histogramming, Monte Carlo Simulation,
Parallel & Concurrent Programming. It summons some of the best concepts,
designs and implementations thought up over time by the community, ports or
improves them and introduces new approaches where need arises. In overlapping
areas, it is competitive or superior to toolkits such as <a href="http://www.sgi.com/Technology/STL/">STL</a>,
<a href="http://root.cern.ch/">Root</a>, <a href="http://wwwinfo.cern.ch/asd/lhc++/HTL">
HTL</a>, <a href="http://wwwinfo.cern.ch/asd/lhc++/clhep">CLHEP</a>, <a href="http://math.nist.gov/tnt/">TNT</a>,
<a href="http://www.cis.tu-graz.ac.at/stat/stadl/random.html"></a><a href="http://sourceware.cygnus.com/gsl/">GSL</a>,
<a href="http://www.cis.tu-graz.ac.at/stat/stadl/random.html"></a><a href="http://www.cis.tu-graz.ac.at/stat/stadl/random.html">C-RAND
/ WIN-RAND</a>, (all C/C++) as well as <a href="http://math.nist.gov/javanumerics/array/">
IBM Array</a>, <a href="http://www.javasoft.com/products/jdk/1.2/docs/guide/collections/index.html">
JDK 1.2 Collections framework</a> (all Java), in terms of performance (!), functionality and (re)usability.
</div></div>
<p></p>
<div class="frame note"><div class="name"><a name="Content">Content</a></div><div class="content"> This distribution consists of several free Java libraries,
for user convenience bundled under one single uniform umbrella. Namely the <i>Colt</i>
library, the <i>Jet</i> library, the <i>CoreJava</i> library, and the <i>Concurrent</i> library.
The Colt library provides fundamental general-purpose data
structures optimized for numerical data, such as resizable arrays, dense and
sparse matrices (multi-dimensional arrays), linear algebra, associative containers
and buffer management. The Jet library contains mathematical and statistical
tools for data analysis, powerful histogramming functionality, Random Number
Generators and Distributions useful for (event) simulations, and more. The CoreJava
library contains C-like print formatting. The Concurrent library contains standardized,
efficient utility classes commonly encountered in parallel & concurrent
programming.
</div></div>
<p></p>
<div class="frame note"><div class="name"><a name="Download">Download</a></div><div class="content"> A distribution download includes HTML API documentation
and source codes for all libraries, as well as one single cross-platform shared
library file, <tt>colt.jar</tt>, containing the distribution compiled
to immediately executable format. Thus, a user can start to work by setting
one single environment variable. He/she never needs to bother about compilation/architecture/linker
issues.
</div></div>
</blockquote></td></tr></table><table width="100%" cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Features"><strong>Features</strong></a></font></td></tr><tr><td><blockquote>
<table border="0" cellspacing="1" cellpadding="2" width="100%">
<tr valign="top" class="table rowodd">
<td valign="top" class="table header">Feature</td>
<td valign="top" class="table header">Description</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Templated Lists and Maps</td>
<td valign="top" class="table row"> Dynamically resizing lists
holding objects or primitive data types such as <code>int</code>, <code>double</code>,
etc. Operations on primitive arrays, algorithms on Colt lists and JAL algorithms
(see below) can freely be mixed at zero copy overhead. <a href="api/cern/colt/list/package-summary.html#Overview">More
details.</a> Automatically growing and shrinking maps holding objects or
primitive data types such as <tt>int</tt>, <tt>double</tt>, etc. <a href="api/cern/colt/map/package-summary.html#Overview">More
details</a>. Space efficient high performance BitVectors and BitMatrices.
<a href="api/cern/colt/bitvector/package-summary.html">More details</a>
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">Templated Multi-dimensional matrices</td>
<td valign="top" class="table row"> Dense and sparse fixed sized (non-resizable) 1,2, 3 and d-dimensional matrices
holding objects or primitive data types such as <tt>int</tt>, <tt>double</tt>,
etc; Also known as <i>multi-dimensional arrays</i> or<i> Data Cubes</i>.
<a href="api/cern/colt/matrix/package-summary.html#Overview">More details</a>.
</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Linear Algebra</td>
<td valign="top" class="table row"> Standard matrix operations and decompositions. LU, QR, Cholesky, Eigenvalue, Singular value.
<a href="api/cern/colt/matrix/linalg/package-summary.html#Overview">More details</a>.
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">Histogramming</td>
<td valign="top" class="table row"> Compact, extensible, modular
and performant histogramming functionality. AIDA offers the histogramming
features of HTL and HBOOK. More details <a href="api/hep/aida/package-summary.html#Overview">here</a>
and also <a href="api/hep/aida/bin/package-summary.html#Overview">there</a>.
</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Mathematics</td>
<td valign="top" class="table row"> Tools for basic and advanced
mathematics: Arithmetics and Algebra, Polynomials and Chebyshev series,
Bessel and Airy functions, Constants and Units, Trigonometric functions,
etc. <a href="api/cern/jet/math/package-summary.html">More details</a>.
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">Statistics</td>
<td valign="top" class="table row"> Tools for basic and advanced
statistics: Estimators, Gamma functions, Beta functions, Probabilities,
Special integrals, etc. <a href="api/cern/jet/stat/package-summary.html">More
details</a>.
</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Random Numbers and Random Sampling</td>
<td valign="top" class="table row"> Strong
yet quick. Partly a port of CLHEP. More details <a href="api/cern/jet/random/package-summary.html">here</a>
and <a href="api/cern/jet/random/engine/package-summary.html">there</a> and
also <a href="api/cern/jet/random/sampling/package-summary.html">there</a>.
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">util.concurrent</td>
<td valign="top" class="table row"> Efficient utility classes commonly encountered in parallel & concurrent programming.
<a href="http://gee.cs.oswego.edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/intro.html">More
details</a>.
</td>
</tr>
</table>
</blockquote></td></tr></table><table width="100%" cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Design Goals"><strong>Design Goals</strong></a></font></td></tr><tr><td><blockquote>
<table border="0" cellspacing="1" cellpadding="2" width="100%">
<tr valign="top" class="table rowodd">
<td valign="top" class="table header">Goal</td>
<td valign="top" class="table header">Description</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Efficiency</td>
<td valign="top" class="table row"> Routines are typically fast both
due to the chosen algorithms and datastructures as well as due to careful
implementation. For comparative benchmarks the latest stable JDK is recommended.
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">User friendliness</td>
<td valign="top" class="table row"> To the casual user this
is a high level object oriented toolkit, consisting of classes which directly
provide most frequently needed functionality. Most users will never need
to extend or modify any code. Classes are cleanly separated into several
mostly self contained packages.
</td>
</tr><tr valign="top" class="table roweven">
<td valign="top" class="table row">Expert friendliness</td>
<td valign="top" class="table row"> In our view, implementations
should not be hidden. Instead, a user, according to his or her likings,
should be encouraged to look under the hood and even tinker with the code.
Not only the public API is extensively documented, but also internal code.
Users who wish to enrich, modify or customize functionality should be able
to do so without much effort.
</td>
</tr><tr valign="top" class="table rowodd">
<td valign="top" class="table row">Safety</td>
<td valign="top" class="table row"> Most methods defensively check preconditions
and throw appropriate exceptions. However, almost none of them are synchronized.
</td>
</tr>
</table>
</blockquote></td></tr></table></td><!--RIGHT SIDE NAVIGATION--></tr></table><!--FOOTER SEPARATOR--><hr size="1" noshade="noshade"><!--FOOTER--><table bgcolor="#ffffff" cellspacing="0" width="100%" border="0"><tr><td align="left" width="33%">
</td><td align="center" width="33%">
<font color="#525D76" size="-1">
<em>
Copyright © 1999, <a href="http://www.cern.ch/">CERN - European Organization for Nuclear Research</a>
</em>
</font>
</td><td align="right" width="33%">
<a href="http://validator.w3.org/check/referer"><img src="images/valid-html401.png" alt="Valid HTML 4.01!" width="88" height="31" border="0"> </a>
<a href="http://jigsaw.w3.org/css-validator/"><img src="images/valid-css.png" alt="Valid CSS!" width="88" height="31" border="0"> </a>
</td></tr></table></body></html>
|