A barrier to the successful use of APL2 is the need to control the changes of depth which arise from using the operator each with functions such as enclose and disclose. The "spilt pepper" effect following a deluge of "each"'s can be just as damaging as the chains of left-brackets, and of quotes with their accompanying @@@@'s which are the sign of an ISO APL programmer losing his or her mental grip. The temptations of a fast interactive system as a substitute for thought are considerable, and should be resisted. To this end there are places in which informal perceptions of how APL2 functions and operators work can be more valuable than the formal descriptions given in the manuals, and this paper focuses on some points where such pedagogical issues arise. It consists of 4 sections, each with rules or precepts for the disciplined and controlled use of nestedness.
Mail Point 188, IBM UK Laboratories Ltd., Hursley House, Hampshiresley Park, Winchester, Hampshire SO21 2JN, England;
机译:一起扮演的团队留在一起:部门圣诞党出席在医疗保健环境中的团队凝聚力的影响
机译:Chris Pincher在“升级”部门内留下住房部长
机译:住院时间与股骨颈骨折患者90天再次入院风险之间的关联:在全关节置换术捆绑式付款计划之内
机译:宏观平面粒子阴影测速中相关深度内的平面外剪切效应
机译:调整后的箱体式试验的新型纠正 - 呼吸条件儿童在72小时内恢复新的危险因素 - 通用儿科模型,用于了解和预测长时间的逗留时间
机译:急性心力衰竭患者在头72小时内较高的利尿剂剂量可预测住院时间更长
机译:在前72小时内更高的利尿剂量是急性心力衰竭患者的更长寿命预测的预测