caksters
Feb 19, 2017, 02:15 AM
Can please someone explain (or provide a reference) which explains the following:
Assuming we have an arbitrary function f(x). If we increase x by delta x, the new function at x + dx is:
f(x+dx)= f(x) + d/dx f(x) dx
So far I have noticed it works, if I use generic formulas (e.g. f(x)=ax and f(x+dx)=a(x+dx)), but I don't fully understand this.
Any help will be much appreciated
Assuming we have an arbitrary function f(x). If we increase x by delta x, the new function at x + dx is:
f(x+dx)= f(x) + d/dx f(x) dx
So far I have noticed it works, if I use generic formulas (e.g. f(x)=ax and f(x+dx)=a(x+dx)), but I don't fully understand this.
Any help will be much appreciated