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...Eckert-Greifendorff]] in 1935. Unlike his previous [[Eckert projection|six projections]], it is not pseudocylindrical. ...suggested the use of the equatorial form of the [[Lambert azimuthal equal-area projection]] instead of Aitoff's use of the [[azimuthal equidistant project ...

...tance is considerable in the edges.<ref name=Snyder>{{cite book |title=Map Projections: A Reference Manual |url=https://books.google.com/books?id=vTLAqGTAc8cC&q= ...a an area-preserving polar transformation of the [[Lambert azimuthal equal-area projection]]. ...

{{Short description|Pseudocylindrical equal-area map projection}} ...els, whereas the even-numbered projection has parallels spaced to preserve area. The pair to Eckert II is the [[Eckert I projection]].<ref name="Snyder89"/ ...

{{Short description|Pseudocylindrical equal-area map projection}} ...ually, whereas even-numbered projections have parallels spaced to preserve area. Eckert IV is paired with Eckert III.<ref name="Snyder89" /> ...

{{Short description|Pseudocylindrical equal-area map projection}} ...resented with [[Interrupted projection|multiple interruption]]s. Its equal-area property makes it useful for presenting spatial distribution of phenomena. ...

{{Redirect|Area-preserving maps|the mathematical concept|Measure-preserving dynamical syste [[File:Mollweide projection SW.jpg|thumb|300px|The equal-area [[Mollweide projection]]]] ...

...map.<ref name="Snyder">''Flattening the Earth: Two Thousand Years of Map Projections'', John P. Snyder, Chicago University Press, 1993, pp. 106–107, {{ISBN|0-22 ...first developed the projection, but it appeared with other new cylindrical projections in the 19th century, and regularly finds its way into textbooks, chiefly to ...

...rea map projection}}[[File:Equal Earth projection SW.jpg|thumb|350px|right|Equal Earth projection. 15° graticule. Imagery is a derivative of NASA’s Blue Mar ...terson |first2=Tom |last3=Jenny |first3=Bernhard|date=2018-08-07|title=The Equal Earth map projection |url=https://www.researchgate.net/publication/32687997 ...

{{Short description|Pseudoazimuthal equal-area map projection}} ...ebe equal-area polyconic projection''' is an [[equal-area projection|equal-area]] [[map projection]] presented by Daniel "daan" Strebe in 1994. Strebe desi ...

...ither [[Conformal projection|conformal]] nor [[equal-area projection|equal-area]] but instead offers a compromise presentation. It is similar in structure * [[List of map projections]] ...

...ical|cylindrical projection]]. It is neither [[Equal-area projection|equal-area]] nor [[Map projection#Conformal|conformal]] but instead tries to balance t * [[List of map projections]] ...

...1943 by [[Erwin Raisz]] (1893–1968) as part of a series of "orthoapsidal" projections, which are perspectives of the globe projected onto various surfaces.<ref n * [[List of map projections]] ...

...ndrical_equal-area_projection_SW.jpg|400px|thumb|Lambert cylindrical equal-area projection of the world; standard parallel at 0°]] ...00px|thumb|The Lambert (standard parallel at 0°, normal) cylindrical equal-area projection with [[Tissot's indicatrix]] of deformation]] ...

...Map_projection#Conformal|conformal]] nor [[Map_projection#Equal-area|equal-area]], but a compromise between the two. ...g the Natural Earth projection was dissatisfaction with existing world map projections for displaying physical data." Further criteria follow, ending with "The id ...

...nsional [[convex set]] all of whose two-dimensional projections have equal area. A sphere is a body of constant brightness, but others exist. Bodies of con ...arallel [[Supporting hyperplane|supporting planes]] have almost-everywhere-equal sums.{{r|mmo|blaschke}} ...

...NOTABLE|notable]]. Because there is no limit to the number of possible map projections,<ref name="SnyderFlattening"> | title=Flattening the Earth: Two Thousand Years of Map Projections ...

...'normalized'', that is, the value ranges from zero to one. A shape factor equal to one usually represents an ideal case or maximum symmetry, such as a circ ...(or [[isoperimetric quotient]]), a function of the perimeter ''P'' and the area ''A'': ...

...m]] states that the spherical excess of a triangle, ''E'', is equal to its area, &Delta;, and therefore Legendre's theorem may be written as ...10⁻² radians (subtending an angle of 0.57° at the centre). The area of such a small triangle is well approximated by that of a planar equilater ...

*More than 75% of the Earth's land area is in the [[northern hemisphere]]. Now, for each regular solid, we may relate its surface area and volume by the equation: ...

...square]]s on two opposite sides of the quadrilateral have the same total [[area]] as the two blue squares on the other pair of opposite sides.]] | title=The area of a quadrilateral ...