TabletPC'Corner: Toute l'information des Tablet PC

Xthink ( http://www.xthink.com ) a annoncé hier la disponibilité effective de son mathjournal en version 2.0. Ce fantastique logiciel de mathématiques ( résolutions symboliques directement avec des équations écrites à la main) voit son nombre de fonctions considérablement augmenté et surtout sa capacité de reconnaissance de l'écriture manuscrite encore amélioré pour mieux prendre en compte la façon dont les gens écrivent les équations mathématiques au niveau des symboles.

Du coté des fonctions mathématiques ce sont les statistiques qui font leurs apparations ainsi que les matrices (enfin) chose occultée hélas de la première version. les nombres complexes et les vecteurs font leurs apparitions.

Enfin des améliorations importantes ont été apportées dans les exports MathML mais aussi dans les exports direct vers la suite bureautique Microsoft Office.

• xthink: http://www.xthink.com/
• Les nouvelles fonctions mathématiques: http://www.xthink.com/mathjournal2_new_functions.html
• un ensemble de 3vidéos présentant la nouvelle version 2.0 (WMV 8 Mo au total) prendre les plus récentes: http://www.xthink.com/videos/

Le prix est de $119USd pour les étudiants et $249USD pour les utilisateurs non étudiants

Nouvelles fonctions mathématiques:

The MathJournal function library expands radically in Version 2.0, including these areas (tap the links to see sample pages):

• Basic functions, samples:
  "prime" and "factor" functions: Generate a list of primes for the number 35. Generate a list of factors for 1007.
• Advanced functions, such as Airy, Bessel, etc.
• Complex numbers
• Digital signal processing
• Functions of polynomials
• Greek symbols, samples:
  Summation: Calculate the summation of n, where n ranges from 1 to 10.
  Product: Calculate the product of n, where n ranges from 1 to 10.
• Matrix operations, samples:
  Example A: 1. Define a matrix. 2. Find its determinant. 3. Find the Hilbert matrix of 4.
  Example B: 1. Define a matrix "D." 2. Find the matrix exponential for D. 3. Find the norm of D.
  Example C: 1. Define matrix "Q" and matrix "T." 2. Find the product of Q and T. 3. Find the sum of Q and T.
• Relational operators
• Statistics, samples:
  Statistics: 1. Define a statistical vector "v." 2. Find the mean, median, and variance values for v.

The following list shows how the MathJournal function library has expanded for Version 2.0:

• ADVANCED FUNCTIONS, More advanced mathematical functions including Airy, Bessel, Beta and Elliptic functions.
• BASIC MATHEMATICAL FUNCTIONS, Most commonly used mathematical functions. The trigonometric functions are listed separately.
• COMPLEX NUMBERS
• GREEK SYMBOLS
• COMMANDS, Commands that are used in the interactive environment to manage screen appearance and variables.
• RELATIONAL OPERATORS (Comparison), Functions (operators) to compare numbers and matrices.
• CONSTANTS, Commonly used constants and parameters used by the execution engine.
• DIGITAL SIGNAL PROCESSING
• LINEAR ALGEBRA, A set of functions that manipulate, build up and decompose real and complex matrices.
• SPECIAL MATRICES, Often used special vectors and matrices.
• MATRIX OPERATORS, Unitary and binary matrix functions that generate new matrices.
• FUNCTIONS OF POLYNOMIALS, Functions that generate or manipulate polynomials and functions that deal with the roots of polynomials.
• STATISTICS, Typical statistical functions.
• SUPPORT FUNCTIONS, Functions to convert, manage folders, display variables and manage variables.
• TRIGONOMETRIC FUNCTIONS, A set of trigonometric and hyperbolic functions commonly used in applications.
• VECTOR ANALYSIS

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