Bugs item #626760, was opened at 20021022 04:19
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https://sourceforge.net/tracker/?func=detail&atid=104933&aid=626760&group_id=4933
Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: zeroequiv extremely slow (minor)
Initial Comment:
expr:
LOG(x^2+SQRT(2)*x+1)
LOG(x^2SQRT(2)*x+1)
+2*ATAN((2*x+SQRT(2))/SQRT(2))
+2*ATAN((2*xSQRT(2))/SQRT(2))
+SQRT(2)*LOG(x+1)
SQRT(2)*LOG(x1)
2*SQRT(2)*ATAN(1/x)$
zeroequiv(expr,x) takes over a minute, though it is not at
all subtle how nonzero it is:
rectform(expr),numer,
..., x=0.1 => 3.314.44i
..., x=0.9 => 6.394.44i
..., x=1.1 => 7.38
..., x=1.5 => 6.38
..., x=20 => 6.28
Zeroequiv is really supposed to be quick and dirty....

You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=626760&group_id=4933
