equivalence of array entries
matrix, vector, array or scalar
The eq(M1,M2) command tests if the elements of M1 and M2 are equal. The result is an integer array with 0s where M1[i] <> M2[i], and 1s where the entries are equal.
M1 and M2 must be the same size, or scalars. If M1 is an array and M2 is a scalar, the result will be an array the same size as M1, with 0 and 1 entries indicating entries that were equal to the scalar value M2.
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