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-rw-r--r--src/algebra/sum.spad.pamphlet4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/sum.spad.pamphlet b/src/algebra/sum.spad.pamphlet
index e3d66075..aa5ae39f 100644
--- a/src/algebra/sum.spad.pamphlet
+++ b/src/algebra/sum.spad.pamphlet
@@ -269,13 +269,13 @@ GosperSummationMethod(E, V, R, P, Q): Exports == Impl where
linearAndNNIntRoot(mp, v) ==
p := univariate(mp, v)
- degree p ~= 1 => "failed"
+ not one? degree p => "failed"
(p1 := retractIfCan(coefficient(p, 1))@Union(RN,"failed"))
case "failed" or
(p0 := retractIfCan(coefficient(p, 0))@Union(RN,"failed"))
case "failed" => "failed"
rt := -(p0::RN)/(p1::RN)
- negative? rt or denom rt ~= 1 => "failed"
+ negative? rt or not one? denom rt => "failed"
numer rt
@