Techniques for avoiding conditional execute in APL2
APL '89 Conference proceedings on APL as a tool of thought
L-one-two-three (L1:..L2:..L3:) considered harmful
APL '91 Proceedings of the international conference on APL '91
Structuring functions with operators
APL '93 Proceedings of the international conference on APL
Structured APL: a proposal for block structured control flow in APL
APL '93 Proceedings of the international conference on APL
New primitive ∇ for APL-style structured control
ACM SIGAPL APL Quote Quad
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A simple method of expressing structured programming constructs is proposed which avoids the need for the large number of keywords found in most structured languages. With this simple method, a countably infinite series of constructs may be formed. It is demonstrated that all conventional structured programming constructs may be expressed using only the constructs corresponding to -1, 0, 1, and 2.