Hi, I was reading something on conservative fields, in this example [itex]\phi[/itex] is a scalar potential. (Please refer to the attatched thumbnail). It's partial derivatives, but I'm not sure why the d[itex]\phi[/itex]/dx * dx, the dx should cancel out? and that should leave d[itex]\phi[/itex]. So the integral should be -3∫d[itex]\phi[/itex]. I know this is wrong, but I'm not sure why, can someone explain?(adsbygoogle = window.adsbygoogle || []).push({});

Thanks

**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!

# Help on partial derivative

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