Differential
The differential (or "derivative") f ′(x) is the change in a function f(x) with respect to changes in the independent variable x.
d
— f(x) = f ′(x)
dx
— f(x) = f ′(x)
dx
Some examples:
| f(x) | f ′(x) |
|---|---|
| c | 0 |
| xc | c xc-1 |
| ln(cx) | x-1 |
| ecx | c ecx |
| sin(cx) | c cos(cx) |
| cos(cx) | -c sin(cx) |