We will use these 21 angles to create a circle of points around (a,b)
7
equals
0.3 1 4 1 5 9 2 6 5 3 5 9
0.6 2 8 3 1 8 5 3 0 7 1 8
0.9 4 2 4 7 7 7 9 6 0 7 7
1.2 5 6 6 3 7 0 6 1 4 4
1.5 7 0 7 9 6 3 2 6 7 9
1.8 8 4 9 5 5 5 9 2 1 5
2.1 9 9 1 1 4 8 5 7 5 1
2.5 1 3 2 7 4 1 2 2 8 7
2.8 2 7 4 3 3 3 8 8 2 3
3.1 4 1 5 9 2 6 5 3 5 9
3.4 5 5 7 5 1 9 1 8 9 5
3.7 6 9 9 1 1 1 8 4 3 1
4.0 8 4 0 7 0 4 4 9 6 7
4.3 9 8 2 2 9 7 1 5 0 3
8
The circle of points will have radius r
9
negative 10
10
10
This table evaluates f(a,b) - f(c,d) where the (c,d) points are on the circle of radius r centered at point (a,b). If the values in the second column are ALL POSITIVE then (a,b) is a local maximum. If the values in the second column are all ALL NEGATIVE then (a,b) is a local minimum. If the values in the second column are a MIX OF POSITIVE AND NEGATIVE then (a,b) is a saddle point.
11
12
13
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