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  /src/lib/libm/src/
s_atan.c 20 /* atan(x)
22 * 1. Reduce x to positive by atan(x) = -atan(-x).
27 * [0,7/16] atan(x) = t-t^3*(a1+t^2*(a2+...(a10+t^2*a11)...)
28 * [7/16,11/16] atan(x) = atan(1/2) + atan( (t-0.5)/(1+t/2) )
29 * [11/16.19/16] atan(x) = atan( 1 ) + atan( (t-1)/(1+t)
85 atan(double x) function in typeref:typename:double
    [all...]
namespace.h 11 #define atan _atan macro
  /src/include/
tgmath.h 133 #define atan(a) __TG_COMPLEX((a), atan) macro

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