sister function of exponential function
\(log_e = ln\)
e.g.:
\(y=log_3 81\)
\(3y=81\)
\(y=4\)
Log func() = find the power of the func()
raise the power of the base, \(\sqrt{3}\) to equal \(x\) (i.e., 9 on above).
Z.eus
Chiu Yau's Log.
Introduction to Linear Algebra and Calculus II – Exponential Function: The Number e
