Linear Algebra and the C Language/a0fx


The trace function:

The trace of a square matrix A, denoted tr(A), is the sum of the elements on its main diagonal... Wikipedia: Trace


trace_R(A+B) = trace_R(A) + trace_R(B)

trace_R(AB) = trace_R(BA)

trace(sA) = s*trace(A)

trace(A) = trace(A_t)

trace_R(A) = trace_R(Eigenvalues)

The traces of similar matrices are equal