atanh
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constexpr Complex atanh(const Complex &z) noexcept
Returns the complex inverse tanh [1] of a complex number \(z\).
Parameters
- const Complex &z
A complex number.
Returns
- type Complex
A complex number.
The inverse tanh function of a complex number is defined as:
\[\tanh^{-1}z = \frac{1}{2}\log(\frac{1 + z}{1 - z})\]
Example
Complex z = 3 + 4_j;
std::cout << atanh(z) << "\n";
Output:
0.117501 + 1.40992j
References