0 个投票

Hello, I have these points:
x1 = (1,0), x2 = (0.5,1), x3 = (0.5,1.5), x4 = (0, -1), x5 = (-1,1), x6 = (0.5, -1)
How do I go about generating a 6 x 6 matrix with entries
x1'x1 x1'x2 x1'x3 x1'x4 x1'x5 x1'x6
x2'x1 x2'x2 x2'x3 x2'x4 x2'x5 x2'x6
x3'x1 x3'x2 x3'x3 x3'x4 x3'x5 x3'x6
x4'x1 x4'x2 x4'x3 x4'x4 x4'x5 x4'x6
x5'x1 x5'x2 x5'x3 x5'x4 x5'x5 x5'x6
x6'x1 x6'x2 x6'x3 x6'x4 x6'x5 x6'x6

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Geoff Hayes
Geoff Hayes 2016-10-15

1 个投票

Perhaps I'm misunderstanding but if
x = [1.0000 0
0.5000 1.0000
0.5000 1.5000
0 -1.0000
-1.0000 1.0000
0.5000 -1.0000];
which is a 6x2 array, then wouldn't
x*x'
be the desired 6x6 array?

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