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-rw-r--r--src/algebra/eigen.spad.pamphlet2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/algebra/eigen.spad.pamphlet b/src/algebra/eigen.spad.pamphlet
index 9cab7430..db92f178 100644
--- a/src/algebra/eigen.spad.pamphlet
+++ b/src/algebra/eigen.spad.pamphlet
@@ -137,7 +137,7 @@ EigenPackage(R) : C == T
tff(p:SUF,x:SE) : F ==
degree p=0 => leadingCoefficient p
r:F:=0$F
- while p~=0 repeat
+ while not zero? p repeat
r:=r+fft(p,x)
p := reductum p
r