(48) Shoelace Method For Determining A Polygon's Area

07142018, 03:12 AM
Post: #1




(48) Shoelace Method For Determining A Polygon's Area
Shoelace Method for determining the area enclosed by any polygon. Enter the (X,Y) coordinates of the N polygon corners in a 2xN matrix and run the program. Example enter the following matrix of (X,Y) coordinates:
[[2 5] [7 10] [12 20] [8 12] [4 3]] The polygon area calculated by the program is 10.5 

07142018, 09:39 AM
Post: #2




RE: (48) Shoelace Method For Determining A Polygon's Area
This program works as well for the HP48:
Code: \<< However the pair of coordinates are expected in a list. Example: { [ 2 5 ] [ 7 10 ] [ 12 20 ] [ 8 12 ] [ 4 3 ] } Area = 10.5 

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