Braille codes for
Mathematics (Nemeth Braille)
The six dot Braille system
has been effectively used for representing the symbols used in Mathematics.
This would help a visually handicapped person learn mathematics using standard
Braille. The assignment of codes for mathematical symbols was proposed
in 1952 by Dr. Abraham Nemeth, himself blind from birth but rose to the
position of a Professor Emeritus of Mathematics at the University of Detroit
in the US.

Prof. Nemeth's system has
gained wide acceptance in the world and the system of Braille Codes has
been named "Nemeth Braille" in his honour.
Interestingly, the Nemeth
system employs Cells from lines 6 and 7 of our classification of the six
dot system, as indicators of the type of information carried by the cells
which follow. Prof. Nemeth had already used the principles of Escape Codes
which computer scientists use as characters which interpret rather than
display information.

Approximately 190 assignments
are given below, classified into groups based on specific topics in mathematics.

Representing numerals and
numbers

Signs of Operation (Symbols
for Operators)

Comaprisons, ratios and
proportions

Symbols used in Set Theory

Different types of Parentheses

Mathematical Symbols and
constants

Shapes and relating to shapes

Polygons

Greek Letters

Special signs unique to
Braille

The assignment of codes is
shown below with the symbol, its Nemeth representation and its description.

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