GB/T 18028-2010Mathematical,physical and chemical symbols of Chinese Braille (English PDF)

3.1 Marlborough symbol Marburgsymbol

Early 19th century by the German Marburg blind Braille Education Center launched a number of physical and chemical notation system, after several international professional meetings

Seminar, has been improved gradually, and promote the use in many countries. The symbol system has become popular on the international system of Braille symbols PHYSICS one.

3.2 Nie Gomez symbol Nemethsymbol

Blind by the US mathematician Abraham Zibo Shi Mei Nie design was officially adopted in 1952, after several revised and improved, has been shaped

Into a more comprehensive, systematic arrangement of mathematical symbols Braille system, adopted by some countries and regions.

3.3 Newline

Braille wrap write an expression, in a non-empty side of the wrap, the end of the line plus a special Braille symbols "."

Note 1. The blind character in a solid point for the location of the points raised, the hollow ring is no projection point.

Note 2. The Arabic numerals in parentheses are solid point which the number of points for discerning reading use the same prescription without symbol between numbers, with different parties

Separated by commas. Elsewhere herein are used in this standard method, no extra dimensions.

3.4 IHC parentheses

If the Eye above or below the text of an expression plus a description or tag, Braille writing, to distinguish between expression and description or label

Remember, the expression enclosed special symbol "."

Note. Eye yes ordinary printed text abbreviation.

3.5 Linear representation

The Eye paper mathematics, physics, chemical expressions and graphs, line by line written in Braille method.

3.6 Flat notation

The Eye paper mathematics, physics, and charts of expression, Braille symbols pictographic writing arrangement method.