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There are 6 basic dot locations in Braille, enough to create about 720 different characters. The basic 26 characters are the English letters A to Z and numbers (1 to 9 and zero, which are the same as letters A to J but indicated by a separate "number" symbol). There are special characters for accented letters in various languages. Characters may also be used for contractions, conjunctions, prepositions, music notation, and special symbols in math and various scientific fields.

To view all the characters, see the related link.

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Q: How many different combinations of dots are used in Braille?
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