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Wolfram alpha gives two different answers for $\int^{\infty}_{-\infty} x \frac{1}{\pi} e^{-(\ln(x) - 0.3)^2} | \frac{1}{x}|dx$ - Mathematics Stack Exchange
Wolfram|Alpha Resources for Educators
Wolfram|Alpha Notebook Edition Turns One: Now with Support for Chemistry, Demonstrations and More—Wolfram Blog
Integral Calculator: Integrate with Wolfram|Alpha
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Integral - Wikipedia
Integral Calculator: Integrate with Wolfram|Alpha
The Ease of Wolfram|Alpha, the Power of Mathematica: Introducing Wolfram| Alpha Notebook Edition—Stephen Wolfram Writings