Prime factors
Syntax: |
v = PFACTORS(n)
|
The function PFACTORS(n)
returns a vector containing
the prime factors of the scalar value n
.
This function can be useful in determining a good length for the input vector for the
Fast Fourier transform function FFT
.
Example
If you enter X=PFACTORS(420)
then X
will contain [2;2;3;5;7]
.
Legendre functions and polynomials
Poisson-Charlier polynomial