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).
Even if you've never seen Gerardus Mercator, you've almost certainly seen his work. His Mercator projection map, invented in 1569, was the primary map that navigators used for years.It's the form that many maps still come in today.ven if you've never seen Gerardus Mercator, you've almost certainly seen his work. His Mercator projection map, invented in 1569, was the primary map that navigators used for years.