Given an arbitrary $(x_1, \dots, x_n) \in [0, 1]^n$, is there any name/known results for the following $n \times n$ matrix (which is constructed by iterating $(x_1 \to \dots \to x_n \to x_1 \to \dots)$ in circle and taking products along the way) $$M = \begin{bmatrix} 1 & x_1 & (x_1 x_2) & (x_1 x_2 x_3) & \dots & (x_1 \dots x_{n - 1}) \\ (x_2 \dots x_n) & 1 & x_2 & (x_2 x_3) & \dots & (x_2 \dots x_{n - 1}) \\ (x_3 \dots x_n) & (x_3 \dots x_n x_1) & 1 & x_3 & \dots & (x_3 \dots x_{n - 1}) \\ \dots & \dots & \dots & \dots & \dots & \dots & \\ x_n & (x_n x_1) & (x_n x_1 x_2) & (x_n x_1 x_2 x_3) & \dots & 1 \\ \end{bmatrix}? $$ How about when we have $x_1 x_2 \dots x_n = 1$ (which makes $M$ nicer)? ThanksThanks!