---
layout: stdlib-reference
---
# Derivative functions

This category contains the following declarations:

#### [ddx\<T\>](ddx)

#### [ddx\_coarse\<T\>](ddx_coarse)

#### [ddx\_fine\<T\>](ddx_fine)

#### [ddy\<T\>](ddy)

#### [ddy\_coarse\<T\>](ddy_coarse)

#### [ddy\_fine\<T\>](ddy_fine)

#### [fwidth\<T\>](fwidth)

#### [fwidth\_coarse\<T\>](fwidth_coarse)

#### [fwidth\_fine\<T\>](fwidth_fine)


<!-- RTD-TOC-START
```{toctree}
:titlesonly:
:hidden:

ddx <ddx>
ddx_coarse <ddx_coarse>
ddx_fine <ddx_fine>
ddy <ddy>
ddy_coarse <ddy_coarse>
ddy_fine <ddy_fine>
fwidth <fwidth>
fwidth_coarse <fwidth_coarse>
fwidth_fine <fwidth_fine>
```
RTD-TOC-END -->