„GeoGebra“ – nemokama, tačiau pakankamai galinga matematiniams matavimams pritaikyta programa. Ši programa puikiai pasitarnaus besimokinantiems geometriją, algebrą ar atliekant kitus skaičiavimus. Sukurtą projektą galėsite išsaugoti HTML, PNG, EPS, GIF formatu.
English:
Open-source and interactive mathematics app with practical tools for geometry, algebra and calculus, featuring many functions and configuration settings
GeoGebra is an open-source utility built specifically for helping users design mathematical objects of several types used for calculus, algebra and geometry. Since this is a Java-based application, you should make sure you have previously installed the working environment on the computer.
User-friendly interface with clear-cut options
It sports a clean interface that allows users to create mathematical objects by using dedicated tools or commands. The application offers quick access to different drawing tools that can be inserted in the working pane pretty easily.
GeoGebra gives you the possibility to add points and vectors, and perform calculations with them (for example, you can measure the length of a vector), as well as include lines and axes, conic sections and arcs, curves, inequalities, intervals, and functions.
Take advantage of a wide array of math functions
The app provides features for number creation and you can use the π and Euler constants for expressions and calculations, as well as work with angles, Boolean variables, matrix operations (addition, subtraction, multiplication), embedded text messages and images.
Atsisiųsti ( Windows OS/ 50 MB )
http://download.geogebra.org/installers/5.0/GeoGebra-Windows-Installer-5-0-298-0.exe