What is the determinant of a symmetric $n \times n$ matrix with all diagonals be 1 and all others are $\rho$ (yes correlation matrix)?
Anyone can tell me a method to work it out elegantly?
Thanks!
What is the determinant of a symmetric $n \times n$ matrix with all diagonals be 1 and all others are $\rho$ (yes correlation matrix)?
Anyone can tell me a method to work it out elegantly?
Thanks!