CTANH(3) Linux Programmer's Manual CTANH(3)
ctanh, ctanhf, ctanhl - complex hyperbolic tangent
double complex ctanh(double complex z);
float complex ctanhf(float complex z);
long double complex ctanhl(long double complex z);
Link with -lm.
The complex hyperbolic tangent function is defined mathematically as:
ctanh(z) = csinh(z) / ccosh(z)
cabs(3), ccosh(3), csinh(3), complex(7)
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