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Editorial Team
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Asked: 2026-06-18T01:51:08+00:00

My question is the same as the ones here and here , and several

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My question is the same as the ones here and here, and several other links.
I want to use a class which imports 

 org.apache.commons.math3.stat.regression.SimpleRegression

I did the following: I downloaded both the binary and source from here HttpClient 4.2.3 (GA). In the lib directory, there were several jar files, I added them all to the project, and then followed the answer given here.
Still, the Eclipse does not recognize the 

org.apache.commons.math3

What have I done wrong?
Thanks a lot.

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1 Answer

  1. Editorial Team

    HttpClient is the wrong library. The math library you are looking for can be found here: http://commons.apache.org/math/

    After downloading the math jar you should follow the steps described here: Install Apache Package on Eclipse

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