"SISAL (\"Streams and Iteration in a Single Assignment Language\") is a general-purpose single assignment functional programming language with strict semantics, implicit parallelism, and efficient array handling. SISAL outputs a dataflow graph in Intermediary Form 1 (IF1). It was derived from VAL (Value-oriented Algorithmic Language, designed by Jack Dennis), and adds recursion and finite streams."@en . . . . . . . . "SISAL"@en . .