gh Nemeth Rule Viewer
Nemeth Braille Code for Mathematics and Science
1972 Revision
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Multipurpose Indicator "

§177. Use of the Multipurpose Indicator: The multipurpose indicator must be used in the situations below for the specific purposes described and, when used in these situations, it must not be regarded as the base-line indicator:

i. The multipurpose indicator must be used before a modified expression as an indication to the reader of impending modification. See Rule XIV for additional information and examples.
ii. The multipurpose indicator must be used between a letter and a succeeding numeric symbol to indicate that the corresponding numeral is not a subscript to the corresponding letter. However, when the letter represents a numeral in a numeration system to a base other than 10, it must be regarded as a numeral and, accordingly, the multipurpose indicator must not be used.