Erf of conjugate is conjugate of erf
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Theorem
The following formula holds: $$\mathrm{erf} \left( \overline{z} \right) = \overline{\mathrm{erf}(z)},$$ where $\mathrm{erf}$ denotes the error function and $\overline{z}$ denotes the complex conjugate.
Proof
References
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of mathematical functions ... (previous): 7.1.10