<p> is the integral of the product of a real function and its first derivative, multiplied by an imaginary number. But why <p> is real?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# A question about <p>

**Physics Forums | Science Articles, Homework Help, Discussion**