Lines Matching defs:cacos
30 #pragma weak __cacos = cacos
34 * dcomplex cacos(dcomplex z);
41 * The principal value of complex inverse cosine function cacos(z),
44 * cacos(z) = acos(B) - i sign(y) log (A + sqrt(A*A-1)),
67 * cacos(conj(z)) = conj(cacos(z))
68 * cacos(-z) = pi - cacos(z)
69 * cacos( z) = pi/2 - casin(z)
72 * cacos(+-0 + i y ) = pi/2 - i y for y is +-0, +-inf, NaN
73 * cacos( x + i inf) = pi/2 - i inf for all x
74 * cacos( x + i NaN) = NaN + i NaN with invalid for non-zero finite x
75 * cacos(-inf + i y ) = pi - i inf for finite +y
76 * cacos( inf + i y ) = 0 - i inf for finite +y
77 * cacos(-inf + i inf) = 3pi/4- i inf
78 * cacos( inf + i inf) = pi/4 - i inf
79 * cacos(+-inf+ i NaN) = NaN - i inf (sign of imaginary is unspecified)
80 * cacos(NaN + i y ) = NaN + i NaN with invalid for finite y
81 * cacos(NaN + i inf) = NaN - i inf
82 * cacos(NaN + i NaN) = NaN + i NaN
145 * cacos(x+i*y)~ [ 0 - i 0, if x = 1,
191 * cacos(z) = acos(B) - i sign(y) log (A + sqrt(A*A-1)),
219 cacos(dcomplex z) {
245 if (ISINF(iy, ly)) { /* cacos(x + i inf) = pi/2 - i inf */
257 } else { /* cacos(x + i NaN) = NaN + i NaN */
277 /* cacos(inf + i inf) = pi/4 - i inf */
278 /* cacos(-inf+ i inf) =3pi/4 - i inf */
286 /* cacos(inf + i NaN) = NaN - i inf */
291 /* cacos(inf + iy ) = 0 - i inf */
292 /* cacos(-inf+ iy ) = pi - i inf */
301 * cacos(NaN + i inf) = NaN - i inf
302 * cacos(NaN + i y ) = NaN + i NaN
303 * cacos(NaN + i NaN) = NaN + i NaN