If the largest element occurs more than once, then the first occurrence is used. If
x has length 0 an error results.
i1 : maxPosition {1,6,4,2}
o1 = 1
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Notice that the position of the maximal element is 1, as indexing in Macaulay 2 always starts at 0.
For elements in a polynomial ring, the order used is the
monomial order associated with the ring.
i2 : R = QQ[r,s,x,y,z];
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i3 : z^2 + x*y + s*z
2
o3 = x*y + s*z + z
o3 : R
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i4 : maxPosition {z^2, s*z, x*y}
o4 = 2
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i5 : maxPosition(z^2, s*z, x*y)
o5 = 2
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