Difference between revisions of "Logarithm at minus 1"
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Revision as of 06:42, 4 June 2016
Theorem
The following formula holds: $$\log(-1)=\pi i,$$ where $\log$ denotes the logarithm, $\pi$ denotes pi, and $i$ denotes the imaginary number.
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous) ... (next): 4.1.14
