Plane geometry. Etymologically, from the Greek "geo", earth; "Metrein", to measure, is the branch of mathematics that deals with the study of geometric figures in the plane. In general, in its elemental and classical form, the geometry focuses on metrical topics such as the calculation of the area and perimeter of flat figures and the area and volume of solid bodies. Other approaches to geometry are analytic geometry, descriptive geometry, topology, space geometry, with four or more dimensions, fractal geometry, ineuclide geometries.

Marcel rovira

Hello!
Today the grup of perffmaths will tell you our intentions to improve our jobs and publications, better quality, better quantity, better reflexions...
 Each of us will post something every two weeks.
We hope you that it like.

Albert C., Edu, Marcel i Sunni