Limit mistake in 3.9.85.0 (2010-10-15)

pealfa shared this question 12 years ago
Answered

How do you do?


I found this mistake:


limit[x/(2x+1),∞] = 0.5 -> OK


But


f(x)= If[x<1,x,x/(2x+1)]


limit[f(x),∞] = indeterminate -> ?


I think Geogebra always says 'indeterminate' in "functions by parts" with ∞ / ∞

Comments (2)

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This way it works: limit[f,∞]

but I filed it as a bug anyway: http://www.geogebra.org/tra...

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Yes, but


Limit[f(x),-∞] = -∞


is OK. I think the problem is also in the indeterminate.


And there's another wrong limit:


Limit[ sin(x) / x , ∞] = indeterminate


This limit is 0.


Thanks

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