Logarithm diverges to negative infinity at 0 from right
From specialfunctionswiki
Theorem
The following formula holds: $$\displaystyle\lim_{x \rightarrow 0^+} \log(x)=-\infty,$$ where $\displaystyle\lim_{x \rightarrow 0^+}$ denotes a limit from the right, $\log$ denotes the logarithm, and $-\infty$ denotes minus infinity.
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous) ... (next): $4.1.13$