krylov {fastmatrix} | R Documentation |
Computes a Krylov matrix
Description
Given an
by
real matrix and an
-vector
,
this function constructs the Krylov matrix
, where
Usage
krylov(a, b, m = ncol(a))
Arguments
a |
a numeric square matrix of order |
b |
a numeric vector of length |
m |
length of the Krylov sequence. |
Value
Returns an by
matrix.
Examples
a <- matrix(c(1, 3, 2, -5, 1, 7, 1, 5, -4), ncol = 3, byrow = TRUE)
b <- c(1, 1, 1)
k <- krylov(a, b, m = 4)
k
[Package fastmatrix version 0.5-772 Index]