anchor.diff:  # Build Matrix
   
  -Build Matrices help you simplify complex build configurations by expanding a step template and array of matrix elements into multiple jobs.
  +Build matrices help you simplify complex build configurations by expanding a step template and array of matrix elements into multiple jobs.
   
   The following [command step](/docs/pipelines/command-step) attributes can contain matrix values for interpolation:
   
  
positive.code: ```
  {: codeblock-file="pipeline.yml"}
  
  Use a Build Matrix to expand a single step template into three steps by interpolating the matrix values into the following build configuration:
  
  ```yaml
  steps:
  
negative.code: * [labels](/docs/pipelines/command-step#label)
  * [commands](/docs/pipelines/command-step#command-step-attributes)
  
  You can't use matrix values in other attributes, including step keys and plugin attributes.
  
  {:toc}
  
  