diff options
| 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/interval.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/interval.spad.pamphlet')
| -rw-r--r-- | src/algebra/interval.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/interval.spad.pamphlet b/src/algebra/interval.spad.pamphlet index 7fbd9fe8..94eea0f5 100644 --- a/src/algebra/interval.spad.pamphlet +++ b/src/algebra/interval.spad.pamphlet @@ -128,7 +128,7 @@ Interval(R:Join(FloatingPointSystem,TranscendentalFunctionCategory)): IntervalCa contains?(u:%,f:R):Boolean == (f > inf(u)) and (f < sup(u)) - positive?(u:%):Boolean == inf(u) > 0 + positive?(u:%):Boolean == positive? inf(u) negative?(u:%):Boolean == negative? sup(u) a:% < b:% == @@ -161,7 +161,7 @@ Interval(R:Join(FloatingPointSystem,TranscendentalFunctionCategory)): IntervalCa a:Integer * b:% == - if (a > 0) then + if positive? a then qinterval(a*inf(b),a*sup(b)) else if negative? a then qinterval(a*sup(b),a*inf(b)) |