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  2. Section (United States land surveying) - Wikipedia

    en.wikipedia.org/wiki/Section_(United_States...

    The primary grid pattern is of quarter sections (12 mi × 12 mi (800 m × 800 m)). In U.S. land surveying under the Public Land Survey System (PLSS), a section is an area nominally one square mile (2.6 square kilometers), containing 640 acres (260 hectares), with 36 sections making up one survey township on a rectangular grid.

  3. Public Land Survey System - Wikipedia

    en.wikipedia.org/wiki/Public_Land_Survey_System

    In the original Homestead Act of 1862, during the Lincoln administration, each settler was allocated 160 acres (0.65 km 2) of land, a quarter-section. Later amendments of the Homestead Act allocated more land, as much as 640 acres (2.6 km 2), a section. This was a good revision to apply to land that was drier or more desolate than the earlier ...

  4. Tract index - Wikipedia

    en.wikipedia.org/wiki/Tract_index

    Example of a section index page. The information is organized by section, with a section relating to one square mile. Each section is presented in a two-page representation, usually by presenting the northwest quarter-section as the top half of the left page. The other quarter-sections are placed in map relationship to the northwest. [1]

  5. 16 Divisions - Wikipedia

    en.wikipedia.org/wiki/16_Divisions

    It provides a master list of divisions, and section numbers and titles within each division, to follow in organizing information about a facility's construction requirements and associated activities. [2] Standardizing the presentation of such information improves communication among all parties involved in construction projects. [2]

  6. Help:Using Wikipedia for mathematics self-study - Wikipedia

    en.wikipedia.org/wiki/Help:Using_Wikipedia_for...

    The lead section of each article is supposed to give a summary accessible to the general reader. Wikipedia is a work in progress. Some of our articles are highly polished, while others are in a rougher state. The Wikipedia model relies on volunteers to edit articles, and you are invited to help. All help is welcomed and greatly appreciated.

  7. Glossary of areas of mathematics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_areas_of...

    Also called infinitesimal calculus A foundation of calculus, first developed in the 17th century, that makes use of infinitesimal numbers. Calculus of moving surfaces an extension of the theory of tensor calculus to include deforming manifolds. Calculus of variations the field dedicated to maximizing or minimizing functionals. It used to be called functional calculus. Catastrophe theory a ...

  8. Additional Mathematics - Wikipedia

    en.wikipedia.org/wiki/Additional_Mathematics

    Paper 1 (Duration: 2 Hours): Questions are categorised into Sections A and B and are tested based on the student's knowledge to grasp the concepts and formulae learned during their 2 years of learning. Section A consists of 12 questions in which all must all be answered, whereas Section B consists of 3 questions and students are given the ...

  9. Mathematical Treatise in Nine Sections - Wikipedia

    en.wikipedia.org/wiki/Mathematical_Treatise_in...

    The Mathematical Treatise in Nine Sections (simplified Chinese: 数书九章; traditional Chinese: 數書九章; pinyin: Shùshū Jiǔzhāng; Wade–Giles: Shushu Chiuchang) is a mathematical text written by Chinese Southern Song dynasty mathematician Qin Jiushao in the year 1247. The mathematical text has a wide range of topics and is taken ...