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Shoelace Algorithm
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FILE INFORMATION
Ranked as 30299 on our all-time top downloads list with 1821 downloads.
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shoelace.zip
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Filename
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shoelace.zip (Download)
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Title
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Shoelace Algorithm
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Description
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This program uses the shoelace algorithm to calculate the area of a polygon inscribed on a coordinate plane when you know the coordinates of its vertices. When you use the program, make sure that you enter the vertices in order. That is, go from one vertice to an adjacent vertice on the polygon, and continue around the polygon in the same order. It does not matter whether you go around the polygon clockwise or counter-clockwise; you just have to go in order. I did not write this program. Instead, I found it online (I believe on an IMSA website) and edited it very slightly. Since I could not find one on TICalc, I decided to post this one for others to use. This type of program may be useful in math competitions because this type of problem appears occasionally.
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Author
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Carl Trank (carltrank@yahoo.com)
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Category
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TI-83/84 Plus BASIC Math Programs (Geometry)
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File Size
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891 bytes
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File Date and Time
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Sun Aug 24 17:31:43 2008
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Documentation Included?
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Yes
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