...
A space for Commons-Math frequently asked questions.
0. How can I get involved in commons-math?
Follow the directions under "contributing" in the http://jakarta.apache.org/commons/math/developers.html Commons Math Developers Guide. Feedback and contributions from all interested parties are welcome. Extensive Java or mathematical knowledge is not required to participate (though some knowledge of one or the other is certainly helpful 
1. Are instances of org.apache.commons.math.stat.descriptive.DescriptiveStatisticsImpl thread-safe?
No, they are not. By design, we chose not to introduce thread semantics into the classes. This allows the library to be used in environments were thread management by the application is to be avoided. The same is true of many other classes in commons-math, including the solvers in the analysis package.
2. Can code derived from "Numerical Recipes" routines be included in commons-math?
...