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mat2
2007 May 06
7
A function for raising a matrix to a power?
Hi,
Is there a function for raising a matrix to a power? For example if you like to compute A%*%A%*%A, is there an abbreviation similar to A^3?
Atte Tenkanen
> A=rbind(c(1,1),c(-1,-2))
> A
[,1] [,2]
[1,] 1 1
[2,] -1 -2
> A^3
[,1] [,2]
[1,] 1 1
[2,] -1 -8
But:
> A%*%A%*%A
[,1] [,2]
[1,] 1 2
[2,] -2 -5