Timeline for subadditive implies concave
Current License: CC BY-SA 2.5
5 events
when toggle format | what | by | license | comment | |
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Aug 16, 2010 at 8:15 | history | edited | Gerald Edgar | CC BY-SA 2.5 |
added 299 characters in body; edited body
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Aug 15, 2010 at 23:57 | comment | added | Dan Brumleve | Except actually it's not: 922.658 = 2 * f(500) < f(1000) = 953.059 | |
Aug 15, 2010 at 23:37 | comment | added | Dan Brumleve | Nice. Another way to write f(x) is x - 12 (log(1 + x) + 3/(1 + x) - 3) which makes it more apparent to me that f is subadditive. | |
Aug 15, 2010 at 23:26 | comment | added | alex | why is this f subadditive? | |
Aug 15, 2010 at 21:32 | history | answered | Gerald Edgar | CC BY-SA 2.5 |