Similarity To APL
Programmers familiar with the APL programming language will see some similarities in Hartmann pipelines. It is obvious that the author was influenced by APL; some of the filters have names and functions similar to specific APL primitive functions. Examples include the TAKE filter, which passes a specified number of records, and the DEAL filter, which spreads its input records out across its output streams, in imitation of the APL deal operator.
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