polylib::sortMonomials
--
sorting monomials with respect to a term orderingpolylib::sortMonomials
(f, ord)
returns a
list of all monomials constituting the polynomial f
,
sorted in descending order with respect to ord
.
polylib::sortMonomials(f)
polylib::sortMonomials(f, vars)
polylib::sortMonomials(f, ord)
polylib::sortMonomials(f, vars, ord)
f |
- | polynomial or polynomial expression |
vars |
- | nonempty list of identifiers |
ord |
- | monomial ordering |
a list of polynomials or expressions of the same type as
f
.
f
Dom::MonomOrdering
, lmonomial
, nthmonomial
LexOrder
, DegreeOrder
,
DegInvLexOrder
; or an object of type
Dom::MonomOrdering
or convertible to that type; or any
object returning a number when called as ord(m1,m2)
for
two degree vectors m1
and m2
. A degree vector
is a list of integers, as returned by degreevec
.f
are used.m1
is considered to be
greater than m2
if and only if ord(m1,m2)
is
positive .The monomials of the polynomial below are compared using
a monomial ordering from Dom::MonomOrdering
.
>> polylib::sortMonomials(poly(x^2+x*y^3+2, [x,y]), DegRevLex(2))
3 2 [poly(x y , [x, y]), poly(x , [x, y]), poly(2, [x, y])]