Panageos: This is a powerful Plane Analytic Geometry Problem Solver and Visualizer. Panageos is oriented to the intensive solution of problems on Plane Analytic Geometry The main feature of Panageos is its power to read the user's equations and interpret them, for this reason the data input is exclusively through the keyboard (coefficients of several types of equations are entered via keyboard). In order to solve problems with Panageos, both the mouse and keyboard are used, clicking the icon of an object (point, line, circle, etc) opens a small menu with several options for user's data entry for each object. Both, coordinates and coefficients of equations can be input. Panageos reads and interprets several types of equations for the straight line, the circle, the parabola, the ellipse, and the Hyperbola. Panageos may be used by the teacher to prepare classes, homeworks and exams. The students may use Panageos to solve hundreds of problems in a very short time, also may be used to verify solutions previously obtained with pencil on paper.