# projective center two beams [Interactive] [Geogebra]

a conical (punctual) It is the locus of the points of intersection of two projective beams.

This model has been verified with a variational model of projective shaft made with Geogebra.

a conical (punctual) It is the locus of the points of intersection of two projective beams.

This model has been verified with a variational model of projective shaft made with Geogebra.

One of the first problems we must learn to work in projective geometry is the determination of homologous elements, both in series and in bundles and in any provision of bases, or separate superimposed.

To continue the study of the methodology to be used will use the dual model the elements based on “points”, ie with straight, further assuming that the bases of the respective beams are separated relate.

Using the laws of duality in projective models can get a set of properties and dual theorems from other previously deducted. Obtaining homologous elements in the projective case series was performed by obtaining intermediate pespectividades allowed perspectival do we get what we have called “projective axis”. We will see that in the case of projective bundles, Dual reasoning leads us to determine projective centers.