MathSource Gopher, FTP, What's New

*To*: mathgroup at yoda.physics.unc.edu*Subject*: MathSource Gopher, FTP, What's New*From*: msadmin (MathSource Administrator)*Date*: Thu, 20 Jan 1994 16:48:37 -0600

The new year brings many changes to MathSource, including the availability of a Gopher server; a new organizational scheme for FTP and Gopher access; self-extracting archives for email users; and more. For general information about MathSource, send an email message containing the line "Help Intro" (no quotes) to the MathSource server at mathsource at wri.com. New FTP Organization -------------------- Foremost is the implementation of a new categorization hierarchy for the MathSource FTP and Gopher sites. This new organization makes it easier to find the MathSource items you are looking for. Related MathSource items are also grouped more closely than before. A brief outline of the new organization is given below. For more information, see the file /pub/README on the MathSource FTP site (mathsource.wri.com [IP# 140.177.10.5]). The MathSource directory organization begins with five category choices on the top level: General, Enhancements, Applications, Publications, and NumberedItems. General: contains item of general interest to the Mathematica community, (i.e., archives, demos, administrative information, etc.) along with system-specific utilities, tools, and tips. Enhancements: contains items that are enhancements to the Mathematica system. They enhance the functionality of Mathematica beyond the basic kernel. Applications: deals with the application of Mathematica to specific problems and subject areas. Publications: includes books, journals, periodicals, press announcements, Mathematica documentation, bibliographical information, technical reports, and notes. NumberedItems: If you know the specific item number of the material you're interested in, you can get it here without moving through multiple directory levels. Each of these categories is further divided into several sub-categories, which are fairly descriptive and self-explanatory. At the lowest level of each directory, MathSource items are identified by their item-numbers. An index file (00-Index) in each directory lists the contents of that directory along with the item title. For more information, a .README file exists for each item providing detailed information about the file sizes and contents for each individual item. At the top level, the file maplist provides a mapping of the MathSource item numbers and their corresponding directory locations. MathSource Gopher ----------------- The MathSource Gopher server has been receiving a tremendous response since its initial announcement. The MathSource Gopher server allows users to access all material available to FTP and Email users and conduct a full-text search of the MathSource contents. Additionally, MathSource Gopher users enjoy links to other Mathematica FTP and Gopher sites around the world. To take advantage of this service, point your Gopher at mathsource.wri.com, port 70. Self-extracting Archives ------------------------ Email users will soon enjoy the ease of self-extracting archives from MathSource. These new methods will result in fewer messages being sent in response to a given request, and an easier extraction process once the files are received. This feature is currently being beta-tested and is expected to go on-line in March. New Items in MathSource ----------------------- The following items have been updated or added to the MathSource collection since December 15, 1993. 0205-366: Applied Mathematica: Getting Started, Getting It Done (January 11, 1994) Authors: William Shaw and Jason Tigg This material contains the longer code sections from Applied Mathematica, by William T. Shaw and Jason Tigg, published by Addison-Wesley in December 1993. This book shows how Mathematica can be used to solve problems in the applied sciences. The code includes specialized graphics; several MathLink examples, including C code and template files; and some extended data analysis examples. 0011: README.ma Author's comments (January 7, 1994; 5 kilobytes) 0022: Chap04.ma Visualizing Data in Two Dimensions (January 7, 1994; 127 kilobytes) 0033: Chap07.ma Exporting Results from Mathematica (January 7, 1994; 15 kilobytes) 0044: Chap14.ma Increased Efficiency (January 7, 1994; 7 kilobytes) 0055: Chap15.ma Robust Regression: An Application of Mathematica to Data Analysis (January 7, 1994; 56 kilobytes) 0066: Chap17.ma Time Series Analysis (January 7, 1994; 863 kilobytes) 0077: Chap18.ma Probabilistic System Assessment (January 7, 1994; 58 kilobytes) 0088: Chap19.ma Visualization of the Mandelbrot Set (January 7, 1994; 39 kilobytes) 0205-838: Customizing Mathematica with init.m (January 5, 1994) Author: Robby Villegas This notebook expands on the MathUser article "Customizing Mathematica with init.m" (MathUser #5, Winter 93-94) It shows how Macintosh and Windows Mathematica users can set up customized initialization files. 0011: CustomizingInit.m.ma Mathematica notebook (January 5, 1993; 19 kilobytes) 0206-019: The Limits of Mathematics --- Course Outline and Software (December 29, 1993) Author: Gregory J. Chaitin A remarkable new definition of a self-delimiting universal Turing machine is presented that is easy to program and runs very quickly. This provides a new foundation for algorithmic information theory. This new universal Turing machine is implemented via software written in Mathematica and C. Using this new software, it is now possible to give a self-contained "hands on" mini-course presenting very concretely the latest proofs of the fundamental information-theoretic incompleteness theorems. 0011: README.tex User's guide TeX form (102 kilobytes) 0022: README.ps Users' guide PostScript form (346 kilobytes) 0033: univ.lisp (3 kilobytes) 0044: omega.lisp (2 kilobytes) 0055: omega2.lisp (1 kilobyte) 0066: omega3.lisp (1 kilobyte) 0077: omega4.lisp (3 kilobytes) 0088: sets0.lisp (1 kilobyte) 0099: sets1.lisp (2 kilobytes) 0101: sets2.lisp (2 kilobytes) 0112: sets3.lisp (2 kilobytes) 0123: sets4.lisp (2 kilobytes) 0134: godel.lisp (2 kilobytes) 0145: godel2.lisp (2 kilobytes) 0156: godel3.lisp (3 kilobytes) 0167: slisp.m (4 kilobytes) 0178: lisp.m (3 kilobytes) 0189: lispm.m (3 kilobytes) 0190: clisp.m (1 kilobyte) 0202: xclisp.m (1 kilobyte) 0213: clispm.m (1 kilobyte) 0224: frontend.m (3 kilobytes) 0235: xpnd.m (2 kilobytes) 0246: rm2c.m (4 kilobytes) 0257: eq.m (8 kilobytes) 0268: lisp.c (8 kilobytes) 0279: lisp.rm (15 kilobytes) 0206-031: Linear Lattice-Ligand Binding Notebooks (January 11, 1994) Author: Alan R. Wolfe These Mathematica notebooks calculate and plot data for the binding of ligands to an infinite linear lattice. Binding site overlap and cooperative interactions between adjacent bound ligands are taken into account. This is a mathematical model for non-sequence-selective binding of proteins and other small molecules (ligands) to a linear macromolecule such as DNA (the lattice). The method used is based on the treatment given in Wolfe, A. R. & Meehan, T. (1992) J. Mol. Biol. 223, 1063-1087. 0011: README.txt Plain-text documentation for all notebooks (January 7, 1994; 10 kilobytes) 0022: README.ma (January 7, 1994; 13 kilobytes) 0033: Sym-Initialization.ma (December 31, 1993; 16 kilobytes) 0044: Sym-CPNESP.ma (December 31, 1993; 6 kilobytes) 0055: Sym-cluster.ma (December 31, 1993; 7 kilobytes) 0066: Iso-Initialization.ma (December 31, 1993; 39 kilobytes) 0077: Iso-cluster-CPNESP.ma (December 31, 1993; 12 kilobytes) 0088: 2Lig-Initialization.ma (December 31, 1993; 38 kilobytes) 0099: 2Lig-CPNESP.ma (December 31, 1993; 12 kilobytes) 0101: Ani-Initialization.ma (December 31, 1993; 98 kilobytes) 0112: Ani-cluster-CPNESP.ma (December 31, 1993; 14 kilobytes) 0203-207: Literature Survey of Mathematica (January 7, 1994) Author: Brian L. Evans A partial index of articles relating to or citing Mathematica. Compiled by Brian Evans of the Georgia Institute of Technology, this reference covers many areas of interest from artificial intelligence to geophysics to symbolic mathematics. 0011: LitSurvey.txt Plain text survey file (January 7, 1994; 61 kilobytes) 0022: LitSurvey.ma Mathematica notebook survey file (January 7, 1994; 77 kilobytes) 0205-995: MathBook for RS/6000 Platforms (January 4, 1994) Author: Wolfram Research MathBook is a utility for viewing online the appendix from "Mathematica: A System for doing Mathematica By Computer". It will work with RS/6000 systems running AIX 3.2 or higher. 0011: README.txt Installation instructions (December 21, 1993; 1 kilobyte) 0022: mathbook.M RS/6000 executable (January 4, 1994; 6197 kilobytes) 0205-298: Nixpub: Public Access Unix Site Listings (January 7, 1994) Author: Phil Eschallier These files contain a list of 142 public-access Unix sites across the country. The lists are sorted according to area-code and contain specific features and service information for each site. Note: The files Nixpub.short and Nixpub.long contain a list of public-access Unix sites that Wolfram Research believes that you may use for the purpose of gaining access to MathSource. Wolfram Research has no involvement in the operation of these sites and does not make any recommendations with regards to their use. 0011: Nixpub.short abbreviated listing (January 4, 1994; 15 kilobytes) 0022: Nixpub.long long, detailed listing (January 4, 1994; 66 kilobytes) 0206-020: Pseudo-Random Pulse Sequencing (January 4, 1994) Author: Erik Jensen The package PseudoRandom.m defines a few routines that are useful for working with pseudorandom sequences. These sequences (also called Maximum Length PseudoRandon Sequences or MLPRS's) have been used in optimizing time-of-flight spectroscopies in the physical sciences (neutron beam and molecular beam scattering). 0011: PseudoRandom.m Mathematica package (December 1, 1993; 9 kilobytes) 0022: PRSequenceTest.ma Mathematica notebook (December 1, 1993; 18 kilobytes) 0206-008: Solution to a System of Ordinary Differential Equations with Mixed, Algebraic, Boundary Conditions (December 29, 1993) Author: Richard C. Miller This notebook illustrates the solution of four simultaneous ordinary differential equations with three constant initial boundary conditions and one algebraic final boundary condition. Forward shooting was used to solve the linear system. The example provided illustrates the temperature profile of an infinitely long cylindrical reactor where the internal reaction is temperature dependent 0011: ODEwithINTandFBCs.ma Mathematica notebook (December 29, 1993; 173 kilobytes) 0206-042: The Stellated Icosahedra (January 7, 1994) Author: Roman E. Maeder The enumeration of all stellations of the icosahedron was accomplished in 1938. The geometric constructions and combinatorial algorithms used can easily be programmed in Mathematica. Its symbolic and graphic capabilities make it well suited to render the solids in a variety of formats. Icosahedra.m is a package for rendering all 59 stellations of the icosahedron. Some examples for its use are in the notebook Icosahedra.ma. 0011: README.txt Abstract and references (January 7, 1994; 1 kilobyte) 0022: Icosahedra.m Stellated Icosahedra package (January 7, 1994; 12 kilobytes) 0033: Icoshedra.ma Sample notebook (January 7, 1994; 11 kilobytes) 0204-848: Tools of Tensor Calculus (January 4, 1994) Authors: X. Jaen and E. Llanta The TTC package implements some of the basic tools of tensor calculus in a differentiable manifold. One works with the full expression of tensors expressed in terms of their components on any coordinate basis. This structure permits to define all operators in an intrinsic way. A tool for changing the coordinates of any tensor is provided. This change of basis mechanism allows the simultaneous use, during the same session, of the different expressions of the same tensor when written in several coordinate bases. The same mechanism is also useful to define submanifolds of any dimension and perform restrictions of tensors defined on the manifold. 0011: TTC.m Tensor Tools Package (January 4, 1994; 23 kilobytes)