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2. Graph paper - Wikipedia

   en.wikipedia.org/wiki/Graph_paper

   Polar coordinate paper has concentric circles divided into small arcs or 'pie wedges' to allow plotting in polar coordinates. Ternary (triangular) graph paper has an equilateral triangle, divided into smaller equilateral triangles with usually 10 or more divisions per edge. It is used to plot compositional percentages of in systems that have ...

3. Polar coordinate system - Wikipedia

   en.wikipedia.org/wiki/Polar_coordinate_system

   Points in the polar coordinate system with pole O and polar axis L. In green, the point with radial coordinate 3 and angular coordinate 60 degrees or (3, 60°). In blue, the point (4, 210°). In mathematics, the polar coordinate system specifies a given point in a plane by using a distance and an angle as its two coordinates. These are

4. Universal polar stereographic coordinate system - Wikipedia

   en.wikipedia.org/wiki/Universal_Polar...

   Like the UTM coordinate system, the UPS coordinate system uses a metric-based cartesian grid laid out on a conformally projected surface. UPS covers the Earth's polar regions, specifically the areas north of 84°N and south of 80°S, which are not covered by the UTM grids, plus an additional 30 minutes of latitude extending into UTM grid to ...

5. File:Polar coordinates grid.svg - Wikipedia

   en.wikipedia.org/.../File:Polar_coordinates_grid.svg

   File:Polar coordinates grid.svg. Add languages. ... English: Polar coordinates grid A two-dimensional coordinate system in mathematics. Date: 4 September 2014, 15:33:46:

6. File:Polar graph paper.svg - Wikipedia

   en.wikipedia.org/wiki/File:Polar_graph_paper.svg

   This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.: Attribution: Mets501 You are free: to share – to copy, distribute and transmit the work

7. Stereographic projection - Wikipedia

   en.wikipedia.org/wiki/Stereographic_projection

   A Cartesian grid on the plane appears distorted on the sphere. The grid lines are still perpendicular, but the areas of the grid squares shrink as they approach the north pole. A polar grid on the plane appears distorted on the sphere. The grid curves are still perpendicular, but the areas of the grid sectors shrink as they approach the north pole.

8. Grid (spatial index) - Wikipedia

   en.wikipedia.org/wiki/Grid_(spatial_index)

   Quadtrees are a specialised form of grid in which the resolution of the grid is varied according to the nature and complexity of the data to be fitted, across the 2-d space. Polar grids utilize the polar coordinate system, using circles of a prescribed radius that are divided into sectors of a certain angle. Coordinates are given as the radius ...

9. Military Grid Reference System - Wikipedia

   en.wikipedia.org/wiki/Military_Grid_Reference_System

   An MGRS grid reference is a point reference system. When the term 'grid square' is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the coordinates provided.