Logged In: YES
user_id=501686
Still present in 5.9.3cvs / sbcl 0.9.9.
In Maxima 5.5/Windows/gcl
expr:
-4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))*
((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1))
-4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)*
((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))-
(SQRT(5)+3)*(4*x+SQRT(5)+1)/
((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2))
+(SQRT(5)-3)*(4*x-SQRT(5)+1)/
((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2))
+1/(5*(x-1))
expr,x=1.1,numer => 1.638...
exprsimp: ratsimp(expr)
exprsimp,x=1.1,numer => 0.384...n (!!!)
Other simplifications do not run into this problem, e.g.
ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely
yield 1/(x^5-1).
Logged In: YES
user_id=501686
Still present in 5.9.3cvs / sbcl 0.9.9.
Logged In: YES
user_id=1797506
Originator: NO
Seems OK in 5.12.0.
Logged In: YES
user_id=1312539
Originator: NO
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