Calculations can contain 'embedded' or internal calculations, which can contain 'embedded' or internal calculations, etc. There is no theoretical limit on the depth of embedding of internal calculations; however, there is a practical limit; calculations need to be simple enough to be understood by the next person to work on the system!

Please note that Freedombase only derives 'embedded' or internal calculations that are actually needed; for example, in an If ... Then ... Else ... scenario, if the Then clause is executed, any embedded or internal calculations within the Else clause will not be evaluated.

For more details on calculations, and what they can contain, including internal recursion, please see the Calculation Help page.