diff options
Diffstat (limited to 'src/algebra/rdesys.spad.pamphlet')
| -rw-r--r-- | src/algebra/rdesys.spad.pamphlet | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/algebra/rdesys.spad.pamphlet b/src/algebra/rdesys.spad.pamphlet index 6b62280d..b50f2b3f 100644 --- a/src/algebra/rdesys.spad.pamphlet +++ b/src/algebra/rdesys.spad.pamphlet @@ -111,7 +111,7 @@ TranscendentalRischDESystem(F, UP): Exports == Implementation where h := (h exquo g)::UP c1 := u1::UP c2 := u2::UP - (da := degree a) > 0 => + positive?(da := degree a) => (u := diophant(a, h, b, c1, c2)) case "failed" => "failed" rec := u::REC v := SPDEsys(a, b, h + derivation a, rec.z1 - derivation(rec.r1), |