hand_area, an Octave code which starts with data points defining the outline of someone's hand, and then estimate the area of the hand using sampling.
The original proposer of this exercise was Cleve Moler, in the textbook Numerical Computing with MATLAB.
The computer code and data files made available on this web page are distributed under the MIT license
hand_area is available in a MATLAB version and an Octave version.
convex_hull, an Octave code which demonstrates the computation of the convex hull of a set of 2D points.
hand_data, an Octave code which carries out some numerical exercises based on data that came from tracing several points on a person's hand.
hand_mesh2d, an Octave code which reads in points which outline a human hand, and calls mesh2d(), which creates a fine triangular mesh of the region outlined by the points.
maple_area, an Octave code which takes the list of pixels that form the boundary of the image of a maple leaf within a picture, and uses grid, Monte Carlo, and Quasi Monte Carlo sampling to estimate the area of the leaf.
maple_boundary, an Octave code which reads an image of a maple leaf and extracts the list of pixels that form the boundary.
triangulate, an Octave code which triangulates a polygonal region.