Searched defs:atan (Results 1 - 3 of 3) sorted by relevance

/bionic/libm/x86/
H A Ds_atan.S39 // atan(X) = Tau + atan( (X`-B) / (One + BX) ) is correct
49 // Tau is atan( B ) if -5 <= k <= 4
53 // atan(NaN) = quiet NaN
54 // atan(+/-INF) = +/-Pi/2
55 // atan(+/-0) = +/-0
75 # -- Begin atan
76 ENTRY(atan) function
244 END(atan)
245 # -- End atan
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/bionic/libm/x86_64/
H A Ds_atan.S39 // atan(X) = Tau + atan( (X`-B) / (One + BX) ) is correct
49 // Tau is atan( B ) if -5 <= k <= 4
53 // atan(NaN) = quiet NaN
54 // atan(+/-INF) = +/-Pi/2
55 // atan(+/-0) = +/-0
60 # -- Begin atan
61 ENTRY(atan) function
214 END(atan)
215 # -- End atan
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/bionic/libm/upstream-freebsd/lib/msun/src/
H A Ds_atan.c16 /* atan(x)
18 * 1. Reduce x to positive by atan(x) = -atan(-x).
23 * [0,7/16] atan(x) = t-t^3*(a1+t^2*(a2+...(a10+t^2*a11)...)
24 * [7/16,11/16] atan(x) = atan(1/2) + atan( (t-0.5)/(1+t/2) )
25 * [11/16.19/16] atan(x) = atan( 1 ) + atan( (
74 atan(double x) function
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