Library / Mathematics / The Number Concept / Braille
The Number Concept ⠃⠗⠋ braille edition
Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.
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337,857 braille cells · 355 embossed pages at 40×25 · 4,849 unrepresentable characters omitted
⠑⠭⠏⠗⠑⠎⠎⠊⠕⠝⠀⠋⠕⠗⠀⠼⠁⠓⠀⠁⠝⠙⠀⠼⠁⠊⠲⠀⠠⠁⠞⠀⠋⠊⠗⠎⠞⠀ ⠞⠓⠑⠽⠀⠎⠑⠑⠍⠀⠙⠑⠉⠊⠙⠑⠙⠇⠽⠀⠕⠙⠙⠆⠀⠃⠥⠞⠀⠋⠁⠍⠊⠇⠊⠁⠗⠊⠞⠽ ⠀⠎⠕⠕⠝⠀⠁⠉⠉⠥⠎⠞⠕⠍⠎⠀⠕⠝⠑⠀⠞⠕⠀⠞⠓⠑⠍⠂⠀⠁⠝⠙⠀⠞⠓⠑⠽⠀ ⠉⠑⠁⠎⠑⠀⠑⠝⠞⠊⠗⠑⠇⠽⠀⠞⠕⠀⠁⠞⠞⠗⠁⠉⠞⠀⠁⠝⠽⠀⠎⠏⠑⠉⠊⠁⠇⠀ ⠁⠞⠞⠑⠝⠞⠊⠕⠝⠲⠀⠠⠞⠓⠊⠎⠀⠏⠗⠊⠝⠉⠊⠏⠇⠑⠀⠕⠋⠀ ⠎⠥⠃⠞⠗⠁⠉⠞⠊⠕⠝⠂⠀⠺⠓⠊⠉⠓⠂⠀⠊⠝⠀⠞⠓⠑⠀⠋⠕⠗⠍⠁⠞⠊⠕⠝⠀⠕⠋⠀ ⠝⠥⠍⠑⠗⠁⠇⠀⠺⠕⠗⠙⠎⠂⠀⠊⠎⠀⠟⠥⠊⠞⠑⠀⠋⠕⠗⠑⠊⠛⠝⠀⠞⠕⠀⠞⠓⠑⠀ ⠛⠑⠝⠊⠥⠎⠀⠕⠋⠀⠠⠑⠝⠛⠇⠊⠎⠓⠂⠀⠊⠎⠀⠎⠞⠊⠇⠇⠀⠕⠋⠀⠎⠥⠉⠓⠀ ⠉⠕⠍⠍⠕⠝⠀⠕⠉⠉⠥⠗⠗⠑⠝⠉⠑⠀⠊⠝⠀⠕⠞⠓⠑⠗⠀⠇⠁⠝⠛⠥⠁⠛⠑⠎⠀ ⠞⠓⠁⠞⠀⠞⠓⠑⠀⠠⠇⠁⠞⠊⠝⠀⠑⠭⠁⠍⠏⠇⠑⠎⠀⠚⠥⠎⠞⠀⠛⠊⠧⠑⠝⠀ ⠉⠑⠁⠎⠑⠀⠞⠕⠀⠃⠑⠀⠎⠕⠇⠊⠞⠁⠗⠽⠀⠊⠝⠎⠞⠁⠝⠉⠑⠎⠲⠀⠀⠠⠞⠓⠑⠀ ⠕⠗⠊⠛⠊⠝⠀⠕⠋⠀⠝⠥⠍⠑⠗⠁⠇⠎⠀⠕⠋⠀⠞⠓⠊⠎⠀⠉⠇⠁⠎⠎⠀⠊⠎⠀⠞⠕⠀ ⠃⠑⠀⠋⠕⠥⠝⠙⠀⠊⠝⠀⠞⠓⠑⠀⠊⠙⠑⠁⠀⠕⠋⠀⠗⠑⠋⠑⠗⠑⠝⠉⠑⠂⠀⠝⠕⠞⠀ ⠝⠑⠉⠑⠎⠎⠁⠗⠊⠇⠽⠀⠞⠕⠀⠞⠓⠑⠀⠇⠁⠎⠞⠂⠀⠃⠥⠞⠀⠞⠕⠀⠞⠓⠑⠀ ⠝⠑⠁⠗⠑⠎⠞⠂⠀⠓⠁⠇⠞⠊⠝⠛⠤⠏⠕⠊⠝⠞⠀⠊⠝⠀⠞⠓⠑⠀⠎⠉⠁⠇⠑⠲⠀ ⠠⠍⠁⠝⠽⠀⠞⠗⠊⠃⠑⠎⠀⠎⠑⠑⠍⠀⠞⠕⠀⠗⠑⠛⠁⠗⠙⠀⠼⠊⠀⠁⠎⠀⠁⠇⠍⠕⠎⠞ ⠀⠼⠁⠚⠂⠀⠁⠝⠙⠀⠞⠕⠀⠛⠊⠧⠑⠀⠊⠞⠀⠁⠀⠝⠁⠍⠑⠀⠺⠓⠊⠉⠓⠀ ⠉⠕⠝⠧⠑⠽⠎⠀⠞⠓⠊⠎⠀⠞⠓⠕⠥⠛⠓⠞⠲⠀⠠⠊⠝⠀⠞⠓⠑⠀ ⠠⠍⠊⠎⠎⠊⠎⠎⠁⠛⠁⠂⠀⠕⠝⠑⠀⠕⠋⠀⠞⠓⠑⠀⠝⠥⠍⠑⠗⠕⠥⠎⠀ ⠠⠁⠇⠛⠕⠝⠟⠥⠊⠝⠀⠇⠁⠝⠛⠥⠁⠛⠑⠎⠂⠀⠺⠑⠀⠓⠁⠧⠑⠂⠀⠋⠕⠗⠀ ⠑⠭⠁⠍⠏⠇⠑⠂⠀⠞⠓⠑⠀⠺⠕⠗⠙⠀⠉⠁⠝⠛⠁⠎⠺⠊⠂⠀⠊⠝⠉⠕⠍⠏⠇⠑⠞⠑⠀ ⠼⠁⠚⠂⠀⠋⠕⠗⠀⠼⠊⠲⠑⠑⠀⠠⠊⠝⠀⠞⠓⠑⠀⠠⠅⠺⠁⠅⠊⠥⠞⠇⠀⠕⠋⠀ ⠠⠃⠗⠊⠞⠊⠎⠓⠀⠠⠉⠕⠇⠥⠍⠃⠊⠁⠂⠀⠼⠓⠀⠁⠎⠀⠺⠑⠇⠇⠀⠁⠎⠀⠼⠊⠀⠊⠎⠀ ⠋⠕⠗⠍⠑⠙⠀⠊⠝⠀⠞⠓⠊⠎⠀⠺⠁⠽⠆⠀⠞⠓⠑⠎⠑⠀⠞⠺⠕⠀⠝⠥⠍⠃⠑⠗⠎⠀ ⠃⠑⠊⠝⠛⠀⠍⠁⠞⠇⠛⠥⠁⠝⠁⠞⠇⠂⠀⠼⠁⠚⠀⠤⠀⠼⠃⠂⠀⠁⠝⠙⠀⠝⠁⠝⠑⠍⠁⠂
These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.