Polynomial Powers

Power of a polynomial.

polypow(p, n)

Arguments

p

vector representing a polynomial.

n

positive integer, the exponent.

Details

Uses polymul to multiply the polynomial p n times with itself.

Value

Vector representing a polynomial.

Note

There is no such function in Matlab or Octave.

See also

polymul

Examples

polypow(c(1, -1), 6)             #=> (x - 1)^6 = (1  -6  15 -20  15  -6   1)
#> [1]   1  -6  15 -20  15  -6   1
polypow(c(1, 1, 1, 1, 1, 1), 2)  # 1 2 3 4 5 6 5 4 3 2 1
#>  [1] 1 2 3 4 5 6 5 4 3 2 1