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StackOverflowError occurs when computing expr Limit((-1+Sqrt(x))/Sqrt(-1+x), x -> Infinity) #931

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tranleduy2000 opened this issue Mar 10, 2024 · 1 comment
Open

StackOverflowError occurs when computing expr Limit((-1+Sqrt(x))/Sqrt(-1+x), x -> Infinity) #931

tranleduy2000 opened this issue Mar 10, 2024 · 1 comment
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@axkr
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@tranleduy2000
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There is the input

Limit((-1+Sqrt(x))/Sqrt(-1+x), x -> Infinity)
image 
java.lang.StackOverflowError
	at org.matheclipse.core.expression.AbstractAST.isAST(AbstractAST.java:3124)
	at org.matheclipse.core.expression.AbstractAST.isNumericArgument(AbstractAST.java:4085)
	at org.matheclipse.core.eval.EvalEngine.evalArgs(EvalEngine.java:795)
	at org.matheclipse.core.eval.EvalEngine.evalASTArg1(EvalEngine.java:921)
	at org.matheclipse.core.eval.EvalEngine.evalAttributes(EvalEngine.java:1275)
	at org.matheclipse.core.expression.AbstractAST.evaluate(AbstractAST.java:2172)
axkr added a commit that referenced this issue Mar 10, 2024
@axkr
WIP #931 OverflowError Limit((-1+Sqrt(x))/Sqrt(-1+x), x -> Infinity)
0dd1f4b
@axkr axkr self-assigned this Mar 10, 2024
@axkr axkr added the bug label Mar 10, 2024
@tranleduy2000
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Another case that causes StackOverflowError:

Limit((-1/E^x+E^x)/(E^x+E^(-x)),x -> Infinity)

axkr added a commit that referenced this issue Mar 15, 2024
@axkr
WIP #931 use Simplify to create better L'Hospitale results
1faa728 
- set LIMIT_LHOSPITAL_RECURSION_LIMIT = 20 to avoid StackOverflow
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@axkr @tranleduy2000