This vaguely reminds me of a fun math puzzle. Find a function f from R to R such that f^-1(x)=f'(x). (For bonus points, such that f^-1(x)=d^n*f/dx^n(x) ie the nth derivative is the inverse).
This vaguely reminds me of a fun math puzzle. Find a function f from R to R such that f^-1(x)=f'(x). (For bonus points, such that f^-1(x)=d^n*f/dx^n(x) ie the nth derivative is the inverse).