The TROLL Programming Language (TPL) provides users with an almost unlimited potential to extend and automate TROLL's capabilities:

• Macros Allow Use of TROLL Commands with Programming Logic
  • create your own commands with TROLL's 4GL
  • automate repetitive tasks
  • produce reusable codes
  • facilitate batch processing
  • simplify complex procedures for end users
• User-defined Functions Work Like Built-in Functions
  • implement to your own specifications
  • include programming logic, as in macros
  • pass parameters, including arbitrarily complex arrays and timeseries, by value
  • use in calculations