Global variable
nextlayerfactor
Default value: false
When nextlayerfactor
is true
, recursive calls of facsum
are applied to the factors of the factored form of the
coefficients of the arguments.
When false
, facsum
is applied to
each coefficient as a whole whenever recusive calls to facsum
occur.
Inclusion of the atom
nextlayerfactor
in the argument list of facsum
has the effect of
nextlayerfactor: true
, but for the next level of the expression only.
Since nextlayerfactor
is always bound to either true
or false
, it
must be presented single-quoted whenever it appears in the argument list of facsum
.