hat - (^) exponentiation
Exponentiation of matrices or vectors by a constant vector.
If A is a vector or a rectangular matrix the exponentiation is done element-wise, with the usual meaning.
For square A matrices the exponentiation is done in the matrix sense.
For boolean, polynomial and rational matrices, the exponent must be an integer
Remark that 123.^b is interpreted as (123).^b . In such cases dot is part of the operator, not of the number.
2^4 [1 2;2 4]^(1+%i) s=poly(0,"s"); [1 2 s]^4 [s 1;1 s]^(-1)