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| author | dos-reis <gdr@axiomatics.org> | 2011-03-12 19:17:32 +0000 |
|---|---|---|
| committer | dos-reis <gdr@axiomatics.org> | 2011-03-12 19:17:32 +0000 |
| commit | c93e84048964194e5674e859d6bd8827010f09f6 (patch) | |
| tree | 407ca23d232bf3f974550fce0175c49495ef49c0 /src/algebra/defintef.spad.pamphlet | |
| parent | 52fddea19454dc2b9bcb54c6edd5a4cd4f5765a9 (diff) | |
| download | open-axiom-c93e84048964194e5674e859d6bd8827010f09f6.tar.gz | |
* src/algebra/: Systematically use negative? when comparing for
greater than 0.
Diffstat (limited to 'src/algebra/defintef.spad.pamphlet')
| -rw-r--r-- | src/algebra/defintef.spad.pamphlet | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/algebra/defintef.spad.pamphlet b/src/algebra/defintef.spad.pamphlet index 0253ac93..34eb5e03 100644 --- a/src/algebra/defintef.spad.pamphlet +++ b/src/algebra/defintef.spad.pamphlet @@ -118,7 +118,7 @@ ElementaryFunctionDefiniteIntegration(R, F): Exports == Implementation where -- returns true if a > b, false if a < b, "failed" if can't decide moreThan(a, b) == (r := retractIfCan(a)@Union(F, "failed")) case "failed" => -- infinite - whatInfinity(a) > 0 + positive? whatInfinity(a) (u := retractIfCan(r::F)@Union(Fraction Z, "failed")) case "failed" => "failed" u::Fraction(Z) > b @@ -171,11 +171,11 @@ ElementaryFunctionDefiniteIntegration(R, F): Exports == Implementation where z := (r := retractIfCan(a)@Union(F, "failed")) case "failed" => sign(f, x, a) sign(f, x, r::F, "right") - (b1 := z case Z) and z::Z > 0 => true + (b1 := z case Z) and positive?(z::Z) => true z := (r := retractIfCan(b)@Union(F, "failed")) case "failed" => sign(f, x, b) sign(f, x, r::F, "left") - (b2 := z case Z) and z::Z > 0 => true + (b2 := z case Z) and positive?(z::Z) => true b1 and b2 => ((w := checkFor0(numer f, k, a, b)) case "failed") or (w::B) => "failed" false |