Find maximum values in the array x.
For a vector argument, return the maximum value. For a matrix argument,
return a row vector with the maximum value of each column. For a
multi-dimensional array, max operates along the first non-singleton
dimension.
If the optional third argument dim is present then operate along
this dimension. In this case the second argument is ignored and should be
set to the empty matrix.
For two matrices (or a matrix and a scalar), return the pairwise maximum.
Thus,
returns the largest element of the 2-D matrix x, and
max (2:5, pi)
⇒ 3.1416 3.1416 4.0000 5.0000
compares each element of the range 2:5 with pi, and returns a
row vector of the maximum values.
For complex arguments, the magnitude of the elements are used for
comparison. If the magnitudes are identical, then the results are ordered
by phase angle in the range (-pi, pi]. Hence,
because all entries have magnitude 1, but -1 has the largest phase angle
with value pi.
If called with one input and two output arguments, max also returns
the first index of the maximum value(s). Thus,
[x, ix] = max ([1, 3, 5, 2, 5])
⇒ x = 5
ix = 3
See also: min, cummax, cummin.