About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 55. Chapters: Pig Latin, Substitution cipher, Atbash, Caesar cipher, Vigen re cipher, ROT13, Transposition cipher, Poem code, Autokey cipher, Scytale, Polyalphabetic cipher, Tabula recta, Playfair cipher, Mirror writing, ryabha a numeration, Grille, Hill cipher, Classical cipher, VIC cipher, Affine cipher, ADFGVX cipher, Running key cipher, Four-square cipher, Thomas Brierley, Book cipher, Pigpen cipher, Two-square cipher, Alberti cipher, Nihilist cipher, Great Cipher, Tap code, Arnold Cipher, Straddling checkerboard, Trifid cipher, Polybius square, DRYAD, Dvorak encoding, M-94, Null cipher, Reservehandverfahren, Rail Fence Cipher, Permutation cipher, Alphabetum Kaldeorum, Bifid cipher, Wadsworth's cipher, Keyword cipher, Reihenschieber, Templar cipher, Vatsyayana cipher. Excerpt: The numeration is a system of numerals based on Sanskrit phonemes. It was introduced in the early 6th century by, in the first chapter titled G tika Padam of his Aryabhatiya. It attributes a numerical value to each syllable of the form consonant+vowel possible in Sanskrit phonology, from = 1 up to = 10. The basis of this number system is mentioned in the second stanza of the first chapter of Aryabhatiya. The Varga (Group/Class) letters Ka to Ma are to be placed in the varga (square) places (1st,100th,10000th ...etc. places) and Avarga letters like Ya, Ra, La .. have to be placed in Avarga places (10th,1000th, ...etc. places). The Varga letters 'Ka' to 'Ma' have value from 1,2,3 .. up to 25 and Avarga letters 'Ya' to 'Ha' have value 30,40,50.. up to 100.In the Varga and Avarga letters, beyond the ninth vowel (place), new symbols can be used. The values for vowels are as follows: i= 100; u = 10000, ru = 1000000 and so on. Aryabhata used this number system for representing both small and large numbers in his mathematical and astronomical calculations. T...
