Hello list, When computing tanh for large complex argument I get unexpected nans:
tanh works fine for large real values: In [84]: tanh(1000) Out[84]: 1.0 Not for large complex values: In [85]: tanh(1000+0j) Out[85]: (nan+nan*j) While the correct answer is: In [86]: (1.0-exp(-2.0*(1000+0j)))/(1.0+exp(-2.0*(1000+0j))) Out[86]: 1.0 Bug? Thanks, Mark
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