ITT: We start with this simple function and make it at convoluted as possible, one step at a time.
You may make any change to the function you want, as long as it remains equivalent to the previous post.
>>8510240
[math] V= \partial_r \frac{\pi r^4}{3} [/math]
>>8510244
>partial when there's only one variable
>>8510247
thats general notation for a derivative
>>8510240
[math]V=\int_{0}^{2\pi}\int_{0}^{\pi}\int_{0}^{r}\rho^2sin(\phi)d\rho d\phi d\theta[/math]