Timeline for How to solve $f(f(x)) = \cos(x)$?
Current License: CC BY-SA 2.5
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| when toggle format | what | by | license | comment | |
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| Mar 9, 2010 at 16:33 | comment | added | Gerald Edgar | "polynomial in the lower coefficients" works only if you expand about a fixed point of f ... in your case, only if f(0)=0 . | |
| Mar 9, 2010 at 14:50 | history | answered | HenrikRüping | CC BY-SA 2.5 |