Timeline for Everywhere continuous and differentiable $f : \mathbb{R} → \mathbb{R}$ that is not smooth?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 25, 2019 at 19:04 | vote | accept | jmarvin_ | ||
| Mar 25, 2019 at 19:04 | |||||
| Mar 24, 2019 at 15:27 | comment | added | coffeemath | @TomislavOstojich No contradiction.. $f$ differentiable always, but $f'$ (not $f$) isn't always. | |
| Mar 24, 2019 at 15:27 | comment | added | MachineLearner | @TomislavOstojich I think you didn't notice the prime. I said that $f(x)$ differentiable. And $f'(x)$ (the derivative of f(x)$ is not differentiable. | |
| Mar 24, 2019 at 15:05 | history | answered | MachineLearner | CC BY-SA 4.0 |