How many different combinations of dots are there in Braille?
Question #3332. Asked by spot.
Last updated Apr 30 2017.
JSBach
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JSBach 24 year member
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64 (6 dots)
NOTE: Different braille codes are also used for different uses like mathematics and music. However, because the six-dot Braille cell only offers 64 possible combinations, of which some are omitted because they feel the same (having the same dots pattern in a different position), many Braille characters have different meanings based on their context. Therefore, character mapping is not one-to-one.
https://en.wikipedia.org/wiki/Braille