You overhear your friend telling her mother that solar wind is responsible for the shape of Earth’s magnetic field and can interfere with airplane communications. Which of the following statements would you use to correct her?

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.

this is poiselle's equation from fluid mechanic in physics. mech eng