APL Quote Quad

APL Quote Quad, often represented by the symbols `'`, is a unique feature of the APL programming language. It allows developers to handle and manipulate data as literal arrays without evaluating them. In simple terms, when you place data within quote quad, APL treats it as a fixed piece of information to be used directly, rather than trying to execute it as code. This is particularly useful for preserving and managing complex data structures, making it easier to work with arrays and symbols in programs without unintended changes or interpretations.