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Name three issues or problems that you might want to address where you
would want to keep all of these significant digits. These could include locat-
ing natural gas pipelines for repair, the location of current political unrest in
a city, or community water wells. Conversely, there may be issues or problems
where you do not need to keep all significant digits. Name three issues or
problems where, say, only two significant digits to the right of the decimal
point would be sufficient. These could include earthquake epicenters, the
location of the center of a high pressure system, or the ideal field area to study
a particular invasive plant species. As we said in the theory section, rounding
or truncation of decimal values can cause substantial problems in real-world
settings!
1.6.5 Final considerations
How has your perspective on the ways that geography and mathematics inter-
sect changed after reading this chapter? Do you think that latitude and lon-
gitude will be used by an increasing number of tools and applications in the
future? How can you use the concepts and activities presented in this chapter
in your own studies, teaching, and research?
1.7 Related theory and practice: Access through QR codes
Theory
Persistent archive:
University of Michigan Library Deep Blue: http://deepblue.lib.umich.edu/handle/2027.42/58219
From Institute of Mathematical Geography site: http://www.imagenet.org/
Arlinghaus, S. L. and J. D. Nystuen. 1986. Mathematical Geography and Global Art: The Mathematics of David Barr's 'Four
Corners Project.' Institute of Mathematical Geography . Scroll down to find antipodal landmass map is near the end of the
book. http://www-personal.umich.edu/~copyrght/image/monog01/fulltext.pdf
Arlinghaus, S. L. Parallels Between Parallels. 1990. Solstice: An Electronic Journal of Geography and Mathematics . Volume I,
No. 2. Scroll down to ind this article in eBook Monograph 13. http://www-personal.umich.edu/~copyrght/image/
solstice/sols290.html
Arlinghaus, S. L. and W. C. Arlinghaus. 2005. Spatial Synthesis: Centrality and Hierarchy . Volume I, Book 1. Ann Arbor:
Institute of Mathematical Geography. http://www.imagenet.org http://www-personal.umich.edu/~copyrght/image/
books/Spatial%20Synthesis2/1ndex.htm
 
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