For a functions $f(x)$, $g(y)$ and $h(z)$, the chain rule yields $ \frac{\partial f(x)}{\partial \theta} = […]

# Year: 2021

## How a Multivariable Function Changes with Respect to a Radial Coordinate

First focus on the Cartesian coordinate $x$, which depends on the spherical coordinates $r,\theta,$ and […]

## Indefinite Integration

The following quote from Reference [1] can clarify a lot of confusion about indefinite integration: […]

## Partial Fractions

This post is based on a section called Integration by Partial Fractions in Morris Kline’s book on […]