| aspect | Calculate topographic aspect from a DEM |
| carmel | Digital Elevation Model of Mount Carmel |
| CI | Calculate the Convergence Index (CI) from a slope raster |
| dem | Small Digital Elevation Model |
| detrend | Detrend a Digital Elevation Model |
| flowlength | Calculate flow length |
| focal2 | Apply a focal filter on a raster |
| golan | Digital Elevation Model of Mount Carmel |
| layer_to_matrix | Get 'stars' layer values as matrix |
| layer_to_vector | Get 'stars' layer values as vector |
| matrix_extend | Extend matrix |
| matrix_get_neighbors | Get neighboring cell values for given matrix cell |
| matrix_to_stars | Convert 'matrix' to 'stars' |
| matrix_trim | Trim matrix |
| slope | Calculate topographic slope from a DEM |
| trim | Remove empty outer rows and columns |
| w_azimuth | Create matrix with azimuths to center |
| w_circle | Create matrix with circular weight pattern |