https://wenku.baidu.com/view/70fe14f8f705cc1755270933.html
范德蒙矩阵的行列式值
=所有可能差值的积
| 1 , 1 , 1 , 1 , 1 |
x1,x2,x3,x4,x5 |
---|
x12,x22,x32,x42,x5^2 |
x13,x23,x33,x43,x5^3 |
---|
x14,x24,x34,x44,x5^4 |
= ∏ ( 1 < = j < i < = n ) ( x i − x j ) =∏ (1<=j<i<=n )(xi-xj) =∏(1<=j<i<=n)(xi−xj)