diff options
Diffstat (limited to 'src/algebra/defintef.spad.pamphlet')
| -rw-r--r-- | src/algebra/defintef.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/defintef.spad.pamphlet b/src/algebra/defintef.spad.pamphlet index c7091f29..0253ac93 100644 --- a/src/algebra/defintef.spad.pamphlet +++ b/src/algebra/defintef.spad.pamphlet @@ -189,11 +189,11 @@ 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 negative?(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 negative?(z::Z) => true b1 and b2 => ((w := checkFor0(numer f, k, a, b)) case "failed") or (w::B) => "failed" false |