SFA::Sf2SfA
--
from SYMF
objects to SFA
objects
SFA::Sf2SfA(sf <,alphab>)
sf | - | any valid expression in SYMF |
alphab | - | any alphabet |
The SFA::Sf2SfA
function transforms any symmetric function of
the
package into an object of
SYMF
SFA
for a specific alphabet (by default A1
).
Valid bases for symmetric functions are e, h, p, s, m
.
Allowed alphabet expressions are linear combinations of formal
alphabets A1
, A2
, A3
, .... For instance
3/2*A1 - A3 + 3/4
is valid.
The inverse function is SfA2Sf
.
>> muEC::SFA::Sf2SfA( s[3,1]*p[2] - e[2,1] );
p[2](A1) s[3, 1](A1) - e[2, 1](A1)
>> muEC::SFA::Sf2SfA( s[3,1]*p[2] - e[2,1], A2 );
p[2](A2) s[3, 1](A2) - e[2, 1](A2)
>> muEC::SFA::Sf2SfA( s[2,2], 2*A3 );
s[2, 2](2 A3)
MuPAD Combinat, an open source algebraic combinatorics package