One of the most used in projective geometry geometric figures is the of the “Full Cuadrivertice”, or its dual “Full ring”.
Generally, a cuadrivertice is formed by four points, so on the plane this figure has 8 degree of freedom (2 coordinates for each vertex) and they will be needed 8 restrictions to determine one concrete.
The theoretical models of projective geometry can be proposing problems that are not of direct application. We will have that “dress up” therefore exercises to infer in the student further analysis and a transverse treatment of knowledge: Can I apply what they learn to solve this problem?.
After analyzing in detail the operations with overlapping series of second order, Let's see an example of application which does not consist in obtaining new tangents or points of contact of a conical.
Involutionary transformations are applications bijective of great interest to be applied in geometric constructions, since they simplify them considerably.
We will see how defined an involution in second-order series, with base a conical, Comparing the new model of transformation with overlapping series of second order previously studied.
In geometry, we speak often with terms that, in some cases, they are not sufficiently important in everyday language. This leads to create barriers in the interpretation of some simple concepts.
One of the terms that I have been asked several times in class is the of “Involution”. We define the involution.
What is an involution?
You do projective concepts that we have developed to studying overlapping of second order, whose base is a conical, They allow to solve problems of determination of points of contact in the tangents of a Conic defined by five tangent or five restrictions through the combination of tangent and their respective tangent points. We will see the implementation of Brianchon point in this type of problems
To study the tangential Conic, and in particular the proyectividades between beams of second order superimposed on a same curve, We can rely on the dual study of the accomplished with overlapping series of second order.
The projective concepts that we have developed to study the overlapping series of second order, whose base is a conical, They allow to solve problems of determination of tangent points of a Conic defined by five points or five restrictions through the combination of points and tangents with their respective points of tangency.
Las técnicas de solución de problemas basadas en la intersección de lugares geométricas se suelen asociar a problemas sencillos de la geometría clásica.
En estos casos es el planteamiento de la solución lo que entraña la mayor complejidad, ya que los lugares geométricos derivados suelen ser elementos geométricos sencillos.
Determinar un punto P desde el que se observe bajo el mismo ángulo a los tres lados de un triángulo ABC.
Vamos a resolver el problema de determinar un cuadrado, cuyos vértices se encuentran sobre elementos geométricos dados.
En particular fijaremos los correspondientes a una de sus diagonales sobre una recta, otro de los vértices en una recta diferente y el cuarto vértice sobre una circunferencia.
Los problemas básicos de geometría métrica tienen una especial belleza. Son adecuados para introducir a los alumnos en el arte del análisis en esta disciplina.
Uno de los problemas propuestos en el examen de Selectividad de Septiembre de 2014 plantea la obtención de una figura geométrica simple, un cuadrado, cuyos vértices se encuentran sobre elementos geométricos dados.
Las animaciones por ordenador se usan principalmente para crear películas o cortos de animación que sirven para entretenernos. También son una poderosa herramienta que dan soporte a la publicidad en general.
Una interesante iniciativa científica se apoya en herramientas gráficas de edición tridimensional, en particular en el motor de juegos de Blender, para desarrollar una metodología de simulación y comunicación de procesos biológicos a nivel molecular.
Molecular Flipbook es una nueva herramienta “opensource” desarrollada aprovechando software libre para dotar a los científicos y educadores de una herramienta específica de animación a partir de moléculas básicas: las proteinas. Estos objetos pueden obtenerse a partir de los bancos de proteinas existentes en la actualidad.
