include/math.h

174

double atan(double);

include/tgmath.h

101

#define atan(x) __tg_full(x, atan)

lib/libm/hidden/math.h

39

PROTO_NORMAL(atan);

lib/libm/src/e_atan2.c

107

else z=atan(fabs(y/x)); /* safe to do y/x */

lib/libm/src/e_atan2.c

67

if(((hx-0x3ff00000)|lx)==0) return atan(y); /* x=1.0 */

lib/libm/src/s_atan.c

119

DEF_STD(atan);

lib/libm/src/s_atan.c

120

LDBL_MAYBE_CLONE(atan);

regress/lib/libm/cephes/monot.c

142

{"atan", atan, 4.14213562373094923430E-1, 3.92684936523437500000E-1,

regress/lib/libm/cephes/monot.c

144

{"atan", atan, 1.0, 7.85385131835937500000E-1,

regress/lib/libm/cephes/monot.c

146

{"atan", atan, 2.41421356237309492343E0, 1.17808532714843750000E0,

regress/lib/libm/cephes/monot.c

148

{"atan", atan, -2.41421356237309514547E0, -1.17810058593750000000E0,

regress/lib/libm/cephes/monot.c

150

{"atan", atan, -1.0, -7.85400390625000000000E-1,

regress/lib/libm/cephes/monot.c

152

{"atan", atan, -4.14213562373095145475E-1, -3.92700195312500000000E-1,

regress/lib/libm/cephes/monot.c

48

double atan (double);

regress/lib/libm/cephes/testvect.c

121

{"atan", atan, &NAN, &NAN, 0},

regress/lib/libm/cephes/testvect.c

122

{"atan", atan, &ZERO, &ZERO, 0},

regress/lib/libm/cephes/testvect.c

123

{"atan", atan, &MZERO, &MZERO, 0},

regress/lib/libm/cephes/testvect.c

124

{"atan", atan, &INF, &PIO2, 0},

regress/lib/libm/cephes/testvect.c

125

{"atan", atan, &MINF, &MPIO2, 0},

regress/lib/libm/cephes/testvect.c

53

double atan (double);

regress/lib/libm/cephes/testvect.c

94

{"atan", atan, &ONE, &PIO4, 0},

regress/lib/libm/fpaccuracy/atan.c

25

#define F atan

regress/lib/libm/msun/invctrig_test.c

303

testall_tol(catan, z, CMPLXL(atan(nums[i]), 0), 1);

regress/lib/libm/msun/invtrig_test.c

133

testall(atan, 0.0, 0.0, 0);

regress/lib/libm/msun/invtrig_test.c

136

testall(atan, -0.0, -0.0, 0);

regress/lib/libm/msun/invtrig_test.c

140

testall(atan, INFINITY, pi / 2, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

143

testall(atan, -INFINITY, -pi / 2, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

147

testall(atan, NAN, NAN, 0);

regress/lib/libm/msun/invtrig_test.c

247

testall(atan, 1.0, pi / 4, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

250

testall(atan, -1.0, -pi / 4, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

265

testall_tol(atan, sqrtl(3), pio3, 1, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

268

testall_tol(atan, -sqrtl(3), -pio3, 1, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

270

testall_tol(atan, sqrt2m1, pi / 8, 1, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

271

testall_tol(atan, -sqrt2m1, -pi / 8, 1, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

308

testall(atan, tiny, tiny, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

312

testall(atan, -tiny, -tiny, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

341

testall(atan, huge, pi / 2, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

342

testall(atan, -huge, -pi / 2, FE_INEXACT);

regress/lib/libm/msun/invtrig_test.c

422

return (tanl(atan(x)));