| 摘要 |
An information cross referencing system facilitates the finding of various bits of information in a reference manual, textbook, computer tutorial, or other reference or educational work. The present system is self-referential, operating throughout a text, program tutorial, or other work as required. The present cross referencing system also works both forward and backward through the text or work, to indicate procedures or steps later in the work from a given point and also to refer back to earlier explanations from later points in the work. The present system comprises an alphanumeric code of up to three characters to indicate the chapter, section, and specific step within a section. A mnemonic code is used to indicate specific illustrations by chapter and illustration number, and further to indicate a specific step shown in the illustration. A further mnemonic code is used to indicate shortcut steps where suitable.
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