Hello,(adsbygoogle = window.adsbygoogle || []).push({});

I have a problem with divergence function DIV in DERIVE 6 and canot find anything in help and web forums either.

#1. At first, I load utility "VectorMatrixFunctions.mth"

#2. when I insert DIV([1/r^2, 0, 0], spherical) I obtain ZERO

But it seems wrong,

f.e. for Gravitation we have divergence for vectors with (1/r^2) and we should expect poisson equation related to volume,

As we know for gravity it is (4 \pi GMm ) / V

What is wrong then with my calculations using Derive 6?

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

Dismiss Notice

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!

# Ask for help with Divergence in Derive 6

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