Commentsdouglas.adams (43)in mathematics • 8 years agoRE: Cryptography 101 (An Interactive Class) : More Introduction to Groups - Week 2S_n has order n! The order of S_n is the number of permutations of n elements? So, you have n blank spaces and can choose from n different elements to fill the first space, from the remaining…douglas.adams (43)in mathematics • 8 years agoRE: Cryptography 101 (An Interactive Class) : An Introduction to Group Theory - Week 1Oh, ok. Thanksdouglas.adams (43)in art • 8 years agoRE: Thank You For HATING My Art!Your art is actually pretty cool! "Saturn's Hexagon" is dizzying and disconcertingdouglas.adams (43)in mathematics • 8 years agoRE: Cryptography 101 (An Interactive Class) : An Introduction to Group Theory - Week 1The set of even integers is an additive group. The identity is 0, since 0 + g = g for any integer g (even or otherwise). Addition is associative: if g1, g2, and g3 are even integers, then (g1 +…douglas.adams (43)in mathematics • 8 years agoRE: Cryptography 101 (An Interactive Class) : An Introduction to Group Theory - Week 1Great idea for an interactive class! I have been meaning to learn about cryptographic schemes, and this is helpful.
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