Lines Matching refs:catanh
73 * The code for catanh and catan comes at the end. It is much simpler than
492 * | catanh, catan |
555 * catanh(z) = log((1+z)/(1-z)) / 2
559 * catanh(z) = z + O(z^3) as z -> 0
561 * catanh(z) = 1/z + sign(y)*I*PI/2 + O(1/z^3) as z -> infinity
563 * Re(catanh(z)) = x/|z|^2 + O(x/z^4)
567 catanh(double complex z)
585 /* catanh(+-Inf + I*NaN) = +-0 + I*NaN */
588 /* catanh(NaN + I*+-Inf) = sign(NaN)0 + I*+-PI/2 */
630 * catan(z) = reverse(catanh(reverse(z)))
636 double complex w = catanh(CMPLX(cimag(z), creal(z)));