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Apr
12
revised Understanding Leibniz formula: $D^n (f g) = \sum\limits_{k=0}^{n} \binom{n}{k} D^{n-k}f D^kg$
deleted 3 characters in body
Feb
25
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 39 characters in body
Feb
25
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 32 characters in body
Feb
25
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 631 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 23 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 38 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 57 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 800 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 13 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
deleted 2716 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 124 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 124 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 124 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 124 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 124 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
edited body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 611 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
edited tags
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 51 characters in body
Feb
23
revised How many different numbers can be written if each used digit symbol is used at least 2 times?
added 10 characters in body