You decide whether any given matrix is an orthonormal matrix or not.
If each column in a matrix is perpendicular to the others, the matrix is orthonormal. Also each column in the matrix must be a unit vector.
Example
a = [1 0 0; 0 1 0; 0 0 1] is an orthonormal matrix
It dseon't mettar waht oedrr the lrettes in a wrod are.
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