##### AM-06 - Map algebra

- Explain the categories of map algebra operations (i.e., local, focal, zonal, and global functions)
- Explain why georegistration is a precondition to map algebra
- Differentiate between map algebra and matrix algebra using real examples
- Perform a map algebra calculation using command line, form-based, and flow charting user interfaces
- Describe a real modeling situation in which map algebra would be used (e.g., site selection, climate classification, least-cost path)
- Describe how map algebra performs mathematical functions on raster grids

## AM-03 - Buffers

This short article introduces the definition of buffer and explains how buffers are created for single or multiple geographic features of different geometric types. It also discusses how buffers are generated differently in vector and raster data models and based on the concept of cost.