Backup diff of Projection (No. 1)

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  • 1 (2017-05-30 (Tue) 23:04:12)
  • 2 (2017-05-31 (Wed) 22:23:38)
  • 3 (2017-06-07 (Wed) 01:56:30)
  • 4 (2021-03-22 (Mon) 12:59:25)

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.

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- パノラマ投影法（ｐｒｏｊｅｃｔｉｏｎ）を学ぶ
--  http://www.dowjow.com/panorama/2011/02/post-56.php