tridiag {EfficientMaxEigenpair} | R Documentation |
Generate tridiagonal matrix Q based on three input vectors.
tridiag(upper, lower, main)
upper |
The upper diagonal vector. |
lower |
The lower diagonal vector. |
main |
The main diagonal vector. |
A tridiagonal matrix is returned.
a = c(1:7)^2
b = c(1:7)^2
c = -c(1:8)^2
tridiag(b, a, c)