include/math.h

238

double acos(double);

include/tgmath.h

131

#define acos(a) __TG_COMPLEX((a), acos)

lib/libm/complex/catrig.c

434

rx = acos(B);

lib/libm/complex/catrig.c

436

rx = acos(-B);

lib/libm/noieee_src/n_asincos.c

190

return (float)acos(x);

lib/libm/noieee_src/n_asincos.c

95

__weak_alias(acos, _acos)

lib/libm/src/w_acos.c

34

__weak_alias(acos, _acos)

lib/libm/src/w_acos.c

37

acos(double x) /* wrapper acos */

lib/lua/libm/libm.c

107

DFUNC_DBL(acos)

tests/lib/libm/t_acos.c

54

T_LIBM_CHECK_NAN(i, acos, x[i]);

tests/lib/libm/t_acos.c

86

T_LIBM_CHECK(i, acos, values[i].x, values[i].y, 1.0e-15);

tests/lib/libm/t_acos.c

93

T_LIBM_CHECK_PLUS_ZERO(0, acos, 1.0);

tests/lib/lua/libm/h_lualibm.c

25

TEST(acos(cos(M_PI_2)));