Pervasive developmental disorders: Types list. The list of types of Pervasive developmental disorders mentioned in various sources includes: 1  Autism. 2  Asperger syndrome. 3  Childhood disintegrative disorder. 4  Rett's syndrome. 5  Pervasive developmental disorder not otherwise specified (PDDNOS) - also called atypical autism.
Mercator Projection. The Mercator projection is a map projection that was widely used for navigation since loxodromes are straight lines (although great circles are curved). The following equations place the x-axis of the projection on the equator and the y-axis at longitude, where is the longitude and is the latitude. (1). (2).
ï¬ A projected coordinate system based on a map projection such as transverse Mercator, Albers equal area, or Robinson, all of which (along with numerous other map projection models) provide various mechanisms to project maps of the earth's spherical surface onto a two-dimensional Cartesian coordinate plane.