Please explain how this equation is derived.(adsbygoogle = window.adsbygoogle || []).push({});

f'(x)= lim [f(x+h)-f(x)]/h

h→0

Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Proof for first principle equation in derivatives?

**Physics Forums | Science Articles, Homework Help, Discussion**