Human perception of the frequency of sound waves is called:

The study of the human perception of sound is called psychoacoustics.

Explanation:

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

i'm on my way to history not a mistory.