diff options
Diffstat (limited to 'src/algebra/intaf.spad.pamphlet')
| -rw-r--r-- | src/algebra/intaf.spad.pamphlet | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/algebra/intaf.spad.pamphlet b/src/algebra/intaf.spad.pamphlet index 8a4e2b94..83ba77fb 100644 --- a/src/algebra/intaf.spad.pamphlet +++ b/src/algebra/intaf.spad.pamphlet @@ -436,8 +436,7 @@ PureAlgebraicIntegration(R, F, L): Exports == Implementation where -- u^n = y^n = g(x) = a x + b -- returns the integral as an integral of a rational function in u rationalInt(f, n, g) == --- not one? degree g => error "rationalInt: radicand must be linear" - not ((degree g) = 1) => error "rationalInt: radicand must be linear" + not one? degree g => error "rationalInt: radicand must be linear" a := leadingCoefficient g integrate(n * monomial(inv a, (n-1)::N)$UP * chv(f, n, a, leadingCoefficient reductum g)) @@ -505,8 +504,7 @@ PureAlgebraicIntegration(R, F, L): Exports == Implementation where * chv0(ug::UPUP, rec.exponent, 1, 0), symbolIfCan(dumk)::SY)) case "failed" => "failed" eval(u::F, dumk, k::F) --- one?(rec.coef) => - ((rec.coef) = 1) => + one?(rec.coef) => curve := RadicalFunctionField(F, UP, UPUP, q::RF, rec.exponent) rc := algDsolve(D()$LDALG + reduce(univariate(nfp, x, k, p))::LDALG, reduce univariate(g, x, k, p))$RDALG |