diff options
Diffstat (limited to 'src/algebra/defintrf.spad.pamphlet')
| -rw-r--r-- | src/algebra/defintrf.spad.pamphlet | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/algebra/defintrf.spad.pamphlet b/src/algebra/defintrf.spad.pamphlet index f86baafa..9122f812 100644 --- a/src/algebra/defintrf.spad.pamphlet +++ b/src/algebra/defintrf.spad.pamphlet @@ -181,7 +181,8 @@ DefiniteIntegrationTools(R, F): Exports == Implementation where i case halfinf => empty?(l := realZeros p) => empty() bounds:REC := - i.halfinf.dir > 0 => [i.halfinf.endpoint, "max"/[t.right for t in l]] + positive?(i.halfinf.dir) => + [i.halfinf.endpoint, "max"/[t.right for t in l]] ["min"/[t.left for t in l], i.halfinf.endpoint] l := [u::REC for t in l | (u := refine(p, t, bounds)) case REC] incl? => l @@ -227,7 +228,7 @@ DefiniteIntegrationTools(R, F): Exports == Implementation where (ea := infeval(p, a)) case "failed" => "failed" (eb := infeval(p, b)) case "failed" => "failed" (s := sign(ea::F * eb::F)) case "failed" => "failed" - s::Z > 0 + positive?(s::Z) -- returns true if p has a positive root. Include 0 is incl0? is true posRoot(p, incl0?) == |