NIntegrate is error on Android API 19

[Former user]

hello, my friend, Calculate this formula (NIntegrate (x, {x, 0,2}) on the android API19 phone, throwing StackOverflowError. But running on API 24 can get normal results.

the exception as follow: java.lang.StackOverflowError at java.util.TreeMap.findByObject(TreeMap.java:351) at java.util.TreeMap.get(TreeMap.java:177) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:95) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.commons.math4.analysis.integration.gauss.BaseRuleFactory.getRuleInternal(BaseRuleFactory.java:97) at org.apache.commons.math4.analysis.integration.gauss.LegendreRuleFactory.computeRule(LegendreRuleFactory.java:47) at org.apache.c

[Axel Kramer]

Did you try to use another integration method instead of LegendreGauss?

Examples:

NIntegrate (x, {x, 0,2}, Method->Simpson)
NIntegrate (x, {x, 0,2}, Method->Romberg)
NIntegrate (x, {x, 0,2}, Method->Trapezoid)

or something like this:

NIntegrate (x, {x, 0,2}, MaxPoints->10)
NIntegrate (x, {x, 0,2}, MaxIterations->1000)

[DHG]

hello, my friend, thanks, according to your answer, it can get result on android api 19, thank you very much

[Axel Kramer]

Please use the Github issue tracker to open a new issue if this issue shouldn't be closed Github issues