279 	double x, y, ax, ay, rx, ry, B, sqrt_A2my2, new_y;  in casinh()  local
286 	ay = fabs(y);  in casinh()
306 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {  in casinh()
322 	if (ax < SQRT_6_EPSILON / 4 && ay < SQRT_6_EPSILON / 4)  in casinh()
325 	do_hard_work(ax, ay, &rx, &B_is_usable, &B, &sqrt_A2my2, &new_y);  in casinh()
360 	double x, y, ax, ay, rx, ry, B, sqrt_A2mx2, new_x;  in cacos()  local
370 	ay = fabs(y);  in cacos()
390 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON) {  in cacos()
407 	if (ax < SQRT_6_EPSILON / 4 && ay < SQRT_6_EPSILON / 4)  in cacos()
410 	do_hard_work(ay, ax, &ry, &B_is_usable, &B, &sqrt_A2mx2, &new_x);  in cacos()
460 	double ax, ay, t;  in clog_for_large_values()  local
465 	ay = fabs(y);  in clog_for_large_values()
466 	if (ax < ay) {  in clog_for_large_values()
468 		ax = ay;  in clog_for_large_values()
469 		ay = t;  in clog_for_large_values()
491 	if (ax > QUARTER_SQRT_MAX || ay < SQRT_MIN)  in clog_for_large_values()
494 	return (CMPLX(log(ax * ax + ay * ay) / 2, atan2(y, x)));  in clog_for_large_values()
576 	double x, y, ax, ay, rx, ry;  in catanh()  local
581 	ay = fabs(y);  in catanh()
607 	if (ax > RECIP_EPSILON || ay > RECIP_EPSILON)  in catanh()
611 	if (ax < SQRT_3_EPSILON / 2 && ay < SQRT_3_EPSILON / 2) {  in catanh()
621 	if (ax == 1 && ay < DBL_EPSILON)  in catanh()
622 		rx = (m_ln2 - log(ay)) / 2;  in catanh()
624 		rx = log1p(4 * ax / sum_squares(ax - 1, ay)) / 4;  in catanh()
627 		ry = atan2(2, -ay) / 2;  in catanh()
628 	else if (ay < DBL_EPSILON)  in catanh()
629 		ry = atan2(2 * ay, (1 - ax) * (1 + ax)) / 2;  in catanh()
631 		ry = atan2(2 * ay, (1 - ax) * (1 + ax) - ay * ay) / 2;  in catanh()