Keith Kim’s Blog

True Crypt, Disk Encryption Softwre

Posted by Keith under Cool Apps

True Crypt
http://www.truecrypt.org/

“Free open-source disk encryption software for Windows Vista/XP/2000 and Linux”

Jalmus, music education software

Posted by Keith under Cool Apps

Jalmus
http://www.jalmus.net/

“Jalmus is a free, open source music education software helping the musicians, specially pianists, to improve their sight-reading. You can train to read music with both exercises on notes or rhythms.

Jalmus is developed in Java and so available on Microsoft Windows, Linux and Mac OS.”

Math Applications

Posted by Keith under Cool Apps

See,
http://en.wikipedia.org/wiki/Comparison_of_computer_algebra_systems

• Axiom, http://axiom-developer.org/

“Axiom is a general purpose system for doing mathematics by computer. It is especially useful for symbolic calculations, mathematical research and for the development of new mathematical algorithms. Axiom has a strongly-typed high-level programming language for expressing abstract mathematical concepts.”

• Octave, http://www.gnu.org/software/octave/

“GNU 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 using a language that is mostly compatible with Matlab. It may also be used as a batch-oriented language.”

• Maxima, http://maxima.sourceforge.net/

“Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high precision numeric results by using exact fractions, arbitrary precision integers, and arbitrarily precision floating point numbers. Maxima can plot functions and data in two and three dimensions.”

• Scilab, http://www.scilab.org/

“Scilab is a numerical computational package developed by INRIA and École nationale des ponts et chaussées (ENPC) in France. It is a high level programming language, most of its functionality based around it being easy to condense many single computations into one line of code. It does this primarily by abstracting primitive data types to be functionally equivalent to matrices.

It is similar in functionality to MATLAB and is available to download at no cost. The program enables users to compute a wide range of mathematical operations from relatively simple operations such as multiplication to high level operations such as correlation and complex arithmetic. The software is often used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations etc.”
(Wikipedia)

• Calc3D, http://www.calc3d.com/

“The calculator can do statistics, best fits, function plotting, integration. It handles vectors, matrices, complex numbers, quaternions, coordinates, regular polygons and intersections.”