_mm_atan2_pd
Classification
SVML, Trigonometry, CPUID Test: SSE
Header File
immintrin.h
Synopsis
 _mm_atan2_pd(__m128d a, __m128d b);
Description
Compute the inverse tangent of packed double-precision (64-bit) floating-point elements in "a" divided by packed elements in "b", and store the results in "dst" expressed in radians.
Operation
FOR j := 0 to 1
	i := j*64
	dst[i+63:i] := ATAN2(a[i+63:i], b[i+63:i])
ENDFOR
dst[MAX:128] := 0