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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/laurent.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/laurent.spad.pamphlet')
| -rw-r--r-- | src/algebra/laurent.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/laurent.spad.pamphlet b/src/algebra/laurent.spad.pamphlet index ada65fa0..131e9eb5 100644 --- a/src/algebra/laurent.spad.pamphlet +++ b/src/algebra/laurent.spad.pamphlet @@ -211,7 +211,7 @@ UnivariateLaurentSeriesConstructor(Coef,UTS):_ (expDiff := getExpon(x) - getExpon(y)) = 0 => getUTS(x) = getUTS(y) abs(expDiff) > _$streamCount$Lisp => false - expDiff > 0 => + positive? expDiff => getUTS(x) * monom(1,expDiff :: NNI) = getUTS(y) getUTS(y) * monom(1,(- expDiff) :: NNI) = getUTS(x) @@ -381,7 +381,7 @@ UnivariateLaurentSeriesConstructor(Coef,UTS):_ zero? n => zero? x => error "0 ** 0 is undefined" 1 - n > 0 => laurent(n * getExpon(x),getUTS(x) ** (n :: NNI)) + positive? n => laurent(n * getExpon(x),getUTS(x) ** (n :: NNI)) xInv := inv x; minusN := (-n) :: NNI laurent(minusN * getExpon(xInv),getUTS(xInv) ** minusN) |