Play-along ear-training course for guitar, bass, and other fretboard instrument players. Learn to play effortlessly by ear. Develop the ability of playing whatever is in your mind without hesitation and without mistakes, improve your improvisation.

Manage your writing projects to write anything faster, better, easier. Keep records on people, places, events, and notes to have your research right beside your writings. Writer-friendly features let you be a writer instead of a computer operator.

2D/3D technical graphics plotting and data analysis software for your plotting needs. Curve fitting, FFT and a presentation software! Download a demo of our analysis and plotting software!

QA-Coach is a question-answer training assistant; it prompts questions selected from a database using a scientific method for optimal memorization of the answers. You can use it to learn vocabulary of a foreign language, mathematical facts etc.

If you want to play FAST... if you want to develop serious guitar picking speed, the Guitar Speed Trainer is a play-along training software that will help you achieve your goal. 20 minutes a day for a few weeks will make a revolution in your playing.

A tool for vocabulary learning. Build your own vocabulary documents and learn with flashcard, multiple choice or written quiz randomly or in order. Easy to edit and maintain vocabularies. Full Unicode support.

If you want to master guitar scales, modes, and improvisation... on all chords, in all keys, all over the fretboard... effortlessly and without hesitation... then the GUITAR SCALES METHOD multimedia course will make your dream come true!

If you want to master the fretboard of guitar, bass, banjo, mandolin, or other fretboard instruments, the Absolute Fretboard Trainer will take you there. Step-by-step exercises will help you develop instant knowledge of each and every note.

DesktopCalc is an enhanced, easy-to-use and powerful scientific calculator with an expression editor, printing operation, result history list and integrated help.

Best data analyzer, 2D/3D-plotting, calc and presentation program.

2D/3D technical graphics plotting and data analysis software for your plotting needs. Curve fitting, FFT and a presentation software! Download a demo of our analysis and plotting software!

CurveFitter performs regression analysis to estimate values of parameters.

CurveFitter performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions.

EqPlot plots 2D graphs from complex equations. The application comprises algebraic, trigonometric, hyperbolic and transcendental functions. EqPlot can be used to verify the results of nonlinear regression analysis program.

SimplexCalc is a multivariable desktop calculator for Windows.

SimplexCalc is a multivariable desktop calculator for Windows. It is small and simple to use but with much power and versatility underneath. It can be used as an enhanced elementary, scientific, financial or expression calculator.

CompactCalc is an enhanced scientific calculator for Windows

CompactCalc is an enhanced scientific calculator for Windows with an expression editor. It embodies generic floating-point routines, hyperbolic and transcendental routines.

DesktopCalc is an enhanced, easy-to-use and powerful scientific calculator

DesktopCalc is an enhanced, easy-to-use and powerful scientific calculator with an expression editor, printing operation, result history list and integrated help.

MultiplexCalc is a multipurpose and comprehensive desktop calculator for Windows

MultiplexCalc is a multipurpose and comprehensive desktop calculator for Windows. It can be used as an enhanced elementary, scientific, financial or expression calculator.

ScienCalc is a convenient and powerful scientific calculator.

ScienCalc is a convenient and powerful scientific calculator. ScienCalc calculates mathematical expression. It supports the common arithmetic operations (+, -, *, /) and parentheses.

Professional and comprehensive unit-converter for Windows

UnitConvertor-A is a professional and comprehensive unit-convert computer program. It has very useful interface that is quick in action, easy to use and other distinctive features.