Lybniz

Posted on September 15, 2006 by Dan Gezelter

Lybniz is an easy to use mathematical function graph plotter using GTK3. It is sutable for use as a graphing calculator or in education.  Now updated to GTK3!
Find Lybniz at: https://github.com/thomasfuhringer/lybniz

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FEniCS

Posted on September 15, 2006 by Dan Gezelter

FEniCS is free software for the Automation of Computational Mathematical Modeling (ACMM).
Find FEniCS at: http://www.fenics.org

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New Software Links

Posted on September 14, 2006 by Dan Gezelter

A bunch of new software links today:

First, in our Nuclear Physics section, we’ve been pointed to the Nuclear data analysis (histogramming) package and the Nuclear physics data acquisition system. The acquisition system is an event-based system that supports a variety of hardware and is used by 30 laboratories world-wide.

In our Medical Sciences section, we’ve got a link to ODIN, an Object Oriented Development Interface for NMR is a framework for rapid prototyping of magnetic resonance imaging sequences.

Our Mathematics section has a new link for GNU libmatheval, which parses and evaluates symbolic expression input as text.

And in Astronomy, we’ve been informed about Skychart, which can draw a map of the night sky for the amateur astronomer from star and nebulae catalogs. It shows the position of the planets, simulates an eclipse, and shows artificial satellites. It can also drive telescopes.

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Nuclear physics data acquisition system

Posted on September 13, 2006 by Dan Gezelter

Event based data acquisition and networked distribution of data to an arbitrary set of analysis platforms. The NSCL Data Acquisition system supports a wide variety of hardware in VME and CAMAC. The system is currently in use by about 30 laboratories world-wide.
Find Nuclear physics data acquisition system at: http://www.sourceforge.net/projects/nscldaq

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Nuclear data analysis (histogramming) package

Posted on September 13, 2006 by Dan Gezelter

Produces histograms of event mode data. Allows analysis to be interactively modified. Support for arbitrary production of computed parameters either via Tcl Scripting or compiled extensions.
Find Nuclear data analysis (histogramming) package at: http://www.sourceforge.net/projects/nsclspectcl

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ODIN

Posted on September 13, 2006 by Dan Gezelter

ODIN – Object Oriented Development Interface for NMR is a framework for rapid prototyping of magnetic resonance imaging sequences.
Find ODIN at: http://od1n.sourceforge.net

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GNU libmatheval

Posted on September 12, 2006 by Dan Gezelter

GNU libmatheval is a library (callable from C and Fortran) to parse and evaluate symbolic expressions input as text. It supports expressions in any number of variables of arbitrary names, decimal and symbolic constants, basic unary and binary operators, and elementary mathematical functions. In addition to parsing and evaluation, libmatheval can also compute symbolic derivatives and output expressions to strings.
Find GNU libmatheval at: http://www.gnu.org/software/libmatheval/

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Skychart

Posted on September 12, 2006 by Dan Gezelter

SkyChart is software to draw a map of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. It shows the position of the planets, simulates an eclipse, and shows artificial satellites. It can also drive the telescope.
Find Skychart at: http://sourceforge.net/projects/skychart

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Terrorist states of matter

Posted on August 15, 2006 by Dan Gezelter

Very funny graphic borrowed from Cosmic Variance:
Phase Diagram Alert Level

So we live in a world where an entire state of matter is considered a national security risk. What I want to know is if Homeland security has considered the implications of the critical point. Everyone knows that gases are terrorist sympathizers, and given a high enough temperature and pressure, it’s impossible to tell your gaseous friends from the evil liquid masterminds.

And are they keeping an eye on Ices II through XII? They’ve always seemed shifty to me. (I’d have to say that Ice-i’ is the most dangerous part of the phase diagram of all…)

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CO-ADC, XMD, ChemiCool

Posted on August 15, 2006 by Dan Gezelter

We’re highlighting three new software submissions today:

  • CO-ADC calculates band structures of semiconducting and insulating crystals. Electron correlations are accounted for using the crystal orbital algebraic diagrammatic construction (CO-ADC) scheme. The software comprises an independent band Lanczos code for real- symmetric, complex-symmetric, and complex-Hermitian matrices. CO-ADC can be found in our Condensed Matter Physics section.
  • XMD is a GPL’ed Molecular Dynamics program written in C. It supports the following potentials: pair, EAM, Tersoff and Stillinger-Weber, and comes with a variety of utility programs to help simplify simulation. Find it in our Molecular Dynamics section.
  • ChemiCool is an online periodic table. Not surprisingly, it can be found in our Periodic Tables section.

[tags]open source, science, software[/tags]

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