diff options
Diffstat (limited to 'src/algebra/poly.spad.pamphlet')
| -rw-r--r-- | src/algebra/poly.spad.pamphlet | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/algebra/poly.spad.pamphlet b/src/algebra/poly.spad.pamphlet index 077ba898..c71af1d9 100644 --- a/src/algebra/poly.spad.pamphlet +++ b/src/algebra/poly.spad.pamphlet @@ -438,11 +438,11 @@ SparseUnivariatePolynomial(R:Ring): UnivariatePolynomialCategory(R) with zero?(cc:=p.first.c ** n) => 0 [[n * p.first.k, cc]] -- not worth doing special trick if characteristic is too small - if characteristic()$R < 3 then return expt(p,n pretend PositiveInteger)$RepeatedSquaring(%) + if characteristic$R < 3 then return expt(p,n pretend PositiveInteger)$RepeatedSquaring(%) y:%:=1 -- break up exponent in qn * characteristic + rn -- exponentiating by the characteristic is fast - rec := divide(n, characteristic()$R) + rec := divide(n, characteristic$R) qn:= rec.quotient rn:= rec.remainder repeat @@ -450,8 +450,8 @@ SparseUnivariatePolynomial(R:Ring): UnivariatePolynomialCategory(R) with if rn > 1 then y:= y * binomThmExpt([p.first], p.rest, rn) zero? qn => return y -- raise to the characteristic power - p:= [[t.k * characteristic()$R , primeFrobenius(t.c)$R ]$Term for t in p] - rec := divide(qn, characteristic()$R) + p:= [[t.k * characteristic$R , primeFrobenius(t.c)$R ]$Term for t in p] + rec := divide(qn, characteristic$R) qn:= rec.quotient rn:= rec.remainder y |