# 1. What is GeoGebra?

GeoGebra is dynamic mathematics software that joins geometry, algebra and calculus. It is developed for mathematics learning and teaching in schools by Markus Hohenwarter at Florida Atlantic University.

On the one hand, GeoGebra is a dynamic geometry system. You can do constructions with points, vectors, segments, lines, conic sections, as well as functions, and change them dynamically afterwards.

On the other hand, equations and coordinates can be entered directly. Thus, GeoGebra has the ability to deal with variables for numbers, vectors, and points, finds derivatives and integrals of functions, and offers commands like Root or Extremum.

These two views are characteristic of GeoGebra: an expression in the algebra window corresponds to an object in the geometry window and vice versa.

www.geogebra.org