I am trying to plot coordinates around a square

I am trying to plot coordinates around a square

References

Reference NO 1

http://stackoverflow.com/questions/13646901/i-am-trying-to-plot-coordinates-around-a-square

Reference NO 2

http://stackoverflow.com/questions/4000886/gps-coordinates-1km-square-around-a-point

Reference NO 3

http://en.wikipedia.org/wiki/Square

Reference NO 4

http://www.mathopenref.com/coordsquareareaperim.html

Reference NO 5

http://openstudy.com/updates/4f47dc25e4b00aeb3e3f034c

Reference NO 6

http://www.armystudyguide.com/content/Prep_For_Basic_Training/Prep_for_basic_land_navigation/determine-the-grid-coordi.shtml

Reference NO 7

http://en.wikibooks.org/wiki/Octave_Programming_Tutorial/Getting_started

Reference NO 8

http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=22481