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/illumos-gate/usr/src/lib/libm/common/complex/
H A Dcacos.c30 #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(
219 cacos(dcomplex z) { function
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