dsyrk(uplo, trans, n, k, alpha, a, lda, beta, c, ldc): void
performs a rank-k matrix-matrix operation for a symmetric matrix C using a general matrix A defined as
C := alpha * A * A' + beta * C
or
C := alpha * A' * A + beta * C
where C is a symmetric matrix
performs a rank-k matrix-matrix operation for a symmetric matrix C using a general matrix A defined as C := alpha * A * A' + beta * C or C := alpha * A' * A + beta * C where C is a symmetric matrix