THE OVERALL CONCEPT     The single-window compact calculator for Windows     Userfirendly and intuitive     Not only numbers but functions calculator     Everything linked together and in the move     Can be snapped down or opened up to show symbols or the graph     Mouse operations preferred + keyboard shortcuts     Keyboard control possible - the system of commands     The smart graphical design     A single "exe" file is sufficient to work with     The sophisticated tutor as a help     The simplest localisation  MATH EXPRESSIONS  SYMBOLS  DIFFERENTIATIONS  POLYNOMIALS  THE DYNAMIC SYSTEM  THE GRAPH  THE TUTOR  THE LOCALISATION  THE INNER REPRESENTATION