Usage:
<to_div_powers f g
Write a polynomial f in the symmetric algebra in terms of divided powers.
Parameters:
f = 1x1 matrix.
Output values:
g = result 1x1 matrix.
The monomials of g are to be interpreted as monomials in the divided
powers. Thus if f = x2+y3z2, then g = 2x2+12y3z2 is to be interpreted
as 2 x^(2) + 12 y^(3) z^(2).